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Exercice
Calculer \[-3+\dfrac{12}{5}+\dfrac{\dfrac{\dfrac{-3-9-7+9}{-3}}{\dfrac{7}{12}+\left(-3-9-9+\dfrac{38}{11}\right)+\dfrac{45}{2}-\left(2+\dfrac{40}{7}-\dfrac{12}{5}\right)-\dfrac{0}{\dfrac{7}{12}}+\dfrac{7}{12}}}{2}+\dfrac{\dfrac{\dfrac{\dfrac{\dfrac{\dfrac{12}{5}}{-7-0-2-9+\dfrac{12}{5}+9-\dfrac{7}{12}+\dfrac{40}{7}}}{\left(-\dfrac{120}{11}\right)\times\left(-7\right)\times\left(-\dfrac{45}{2}\right)\times2-\dfrac{38}{11}-\left(0-3+\dfrac{38}{11}\right)}}{\left(-7\right)\times\dfrac{\dfrac{\dfrac{42}{5}}{\dfrac{7}{12}}}{-\dfrac{45}{2}}\times\left(-\dfrac{120}{11}\right)\times\left(-\dfrac{45}{2}-\dfrac{42}{5}\right)\times\dfrac{\dfrac{\dfrac{-\dfrac{63}{2}}{-\dfrac{63}{2}}}{-7}}{-\dfrac{45}{2}}}}{-3}}{-\dfrac{63}{2}}\]
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Exercice
On a \( X=-3+\dfrac{12}{5}+\dfrac{\dfrac{\dfrac{-3-9-7+9}{-3}}{\dfrac{7}{12}+\left(-3-9-9+\dfrac{38}{11}\right)+\dfrac{45}{2}-\left(2+\dfrac{40}{7}-\dfrac{12}{5}\right)-\dfrac{0}{\dfrac{7}{12}}+\dfrac{7}{12}}}{2}+\dfrac{\dfrac{\dfrac{\dfrac{\dfrac{\dfrac{12}{5}}{-7-0-2-9+\dfrac{12}{5}+9-\dfrac{7}{12}+\dfrac{40}{7}}}{\left(-\dfrac{120}{11}\right)\times\left(-7\right)\times\left(-\dfrac{45}{2}\right)\times2-\dfrac{38}{11}-\left(0-3+\dfrac{38}{11}\right)}}{\left(-7\right)\times\dfrac{\dfrac{\dfrac{42}{5}}{\dfrac{7}{12}}}{-\dfrac{45}{2}}\times\left(-\dfrac{120}{11}\right)\times\left(-\dfrac{45}{2}-\dfrac{42}{5}\right)\times\dfrac{\dfrac{\dfrac{-\dfrac{63}{2}}{-\dfrac{63}{2}}}{-7}}{-\dfrac{45}{2}}}}{-3}}{-\dfrac{63}{2}}=\dfrac{397316854293133824}{271122547789416960}\) . Voici le détail :
\begin{eqnarray*}
X &=&-3+\dfrac{12}{5}+\dfrac{\dfrac{\dfrac{-3-9-7+9}{-3}}{\dfrac{7}{12}+\left(-12-9+\dfrac{38}{11}\right)+\dfrac{45}{2}-\left(2+\dfrac{40}{7}-\dfrac{12}{5}\right)-\dfrac{0}{\dfrac{7}{12}}+\dfrac{7}{12}}}{2}+\dfrac{\dfrac{\dfrac{\dfrac{\dfrac{\dfrac{12}{5}}{-7-0-2-9+\dfrac{12}{5}+9-\dfrac{7}{12}+\dfrac{40}{7}}}{\left(-\dfrac{120}{11}\right)\times\left(-7\right)\times\left(-\dfrac{45}{2}\right)\times2-\dfrac{38}{11}-\left(0-3+\dfrac{38}{11}\right)}}{\left(-7\right)\times\dfrac{\dfrac{\dfrac{42}{5}}{\dfrac{7}{12}}}{-\dfrac{45}{2}}\times\left(-\dfrac{120}{11}\right)\times\left(-\dfrac{45}{2}-\dfrac{42}{5}\right)\times\dfrac{\dfrac{\dfrac{-\dfrac{63}{2}}{-\dfrac{63}{2}}}{-7}}{-\dfrac{45}{2}}}}{-3}}{-\dfrac{63}{2}}\\&=&-3+\dfrac{12}{5}+\dfrac{\dfrac{\dfrac{-3-9-7+9}{-3}}{\dfrac{7}{12}+\left(-21+\dfrac{38}{11}\right)+\dfrac{45}{2}-\left(2+\dfrac{40}{7}-\dfrac{12}{5}\right)-\dfrac{0}{\dfrac{7}{12}}+\dfrac{7}{12}}}{2}+\dfrac{\dfrac{\dfrac{\dfrac{\dfrac{\dfrac{12}{5}}{-7-0-2-9+\dfrac{12}{5}+9-\dfrac{7}{12}+\dfrac{40}{7}}}{\left(-\dfrac{120}{11}\right)\times\left(-7\right)\times\left(-\dfrac{45}{2}\right)\times2-\dfrac{38}{11}-\left(0-3+\dfrac{38}{11}\right)}}{\left(-7\right)\times\dfrac{\dfrac{\dfrac{42}{5}}{\dfrac{7}{12}}}{-\dfrac{45}{2}}\times\left(-\dfrac{120}{11}\right)\times\left(-\dfrac{45}{2}-\dfrac{42}{5}\right)\times\dfrac{\dfrac{\dfrac{-\dfrac{63}{2}}{-\dfrac{63}{2}}}{-7}}{-\dfrac{45}{2}}}}{-3}}{-\dfrac{63}{2}}\\&=&-3+\dfrac{12}{5}+\dfrac{\dfrac{\dfrac{-3-9-7+9}{-3}}{\dfrac{7}{12}-\dfrac{193}{11}+\dfrac{45}{2}-\left(2+\dfrac{40}{7}-\dfrac{12}{5}\right)-\dfrac{0}{\dfrac{7}{12}}+\dfrac{7}{12}}}{2}+\dfrac{\dfrac{\dfrac{\dfrac{\dfrac{\dfrac{12}{5}}{-7-0-2-9+\dfrac{12}{5}+9-\dfrac{7}{12}+\dfrac{40}{7}}}{\left(-\dfrac{120}{11}\right)\times\left(-7\right)\times\left(-\dfrac{45}{2}\right)\times2-\dfrac{38}{11}-\left(0-3+\dfrac{38}{11}\right)}}{\left(-7\right)\times\dfrac{\dfrac{\dfrac{42}{5}}{\dfrac{7}{12}}}{-\dfrac{45}{2}}\times\left(-\dfrac{120}{11}\right)\times\left(-\dfrac{45}{2}-\dfrac{42}{5}\right)\times\dfrac{\dfrac{\dfrac{-\dfrac{63}{2}}{-\dfrac{63}{2}}}{-7}}{-\dfrac{45}{2}}}}{-3}}{-\dfrac{63}{2}}\\&=&-3+\dfrac{12}{5}+\dfrac{\dfrac{\dfrac{-3-9-7+9}{-3}}{\dfrac{7}{12}-\dfrac{193}{11}+\dfrac{45}{2}-\left(\dfrac{54}{7}-\dfrac{12}{5}\right)-\dfrac{0}{\dfrac{7}{12}}+\dfrac{7}{12}}}{2}+\dfrac{\dfrac{\dfrac{\dfrac{\dfrac{\dfrac{12}{5}}{-7-0-2-9+\dfrac{12}{5}+9-\dfrac{7}{12}+\dfrac{40}{7}}}{\left(-\dfrac{120}{11}\right)\times\left(-7\right)\times\left(-\dfrac{45}{2}\right)\times2-\dfrac{38}{11}-\left(0-3+\dfrac{38}{11}\right)}}{\left(-7\right)\times\dfrac{\dfrac{\dfrac{42}{5}}{\dfrac{7}{12}}}{-\dfrac{45}{2}}\times\left(-\dfrac{120}{11}\right)\times\left(-\dfrac{45}{2}-\dfrac{42}{5}\right)\times\dfrac{\dfrac{\dfrac{-\dfrac{63}{2}}{-\dfrac{63}{2}}}{-7}}{-\dfrac{45}{2}}}}{-3}}{-\dfrac{63}{2}}\\&=&-3+\dfrac{12}{5}+\dfrac{\dfrac{\dfrac{-3-9-7+9}{-3}}{\dfrac{7}{12}-\dfrac{193}{11}+\dfrac{45}{2}-\dfrac{186}{35}-\dfrac{0}{\dfrac{7}{12}}+\dfrac{7}{12}}}{2}+\dfrac{\dfrac{\dfrac{\dfrac{\dfrac{\dfrac{12}{5}}{-7-0-2-9+\dfrac{12}{5}+9-\dfrac{7}{12}+\dfrac{40}{7}}}{\left(-\dfrac{120}{11}\right)\times\left(-7\right)\times\left(-\dfrac{45}{2}\right)\times2-\dfrac{38}{11}-\left(0-3+\dfrac{38}{11}\right)}}{\left(-7\right)\times\dfrac{\dfrac{\dfrac{42}{5}}{\dfrac{7}{12}}}{-\dfrac{45}{2}}\times\left(-\dfrac{120}{11}\right)\times\left(-\dfrac{45}{2}-\dfrac{42}{5}\right)\times\dfrac{\dfrac{\dfrac{-\dfrac{63}{2}}{-\dfrac{63}{2}}}{-7}}{-\dfrac{45}{2}}}}{-3}}{-\dfrac{63}{2}}\\&=&-3+\dfrac{12}{5}+\dfrac{\dfrac{\dfrac{-3-9-7+9}{-3}}{\dfrac{7}{12}-\dfrac{193}{11}+\dfrac{45}{2}-\dfrac{186}{35}-0+\dfrac{7}{12}}}{2}+\dfrac{\dfrac{\dfrac{\dfrac{\dfrac{\dfrac{12}{5}}{-7-0-2-9+\dfrac{12}{5}+9-\dfrac{7}{12}+\dfrac{40}{7}}}{\left(-\dfrac{120}{11}\right)\times\left(-7\right)\times\left(-\dfrac{45}{2}\right)\times2-\dfrac{38}{11}-\left(0-3+\dfrac{38}{11}\right)}}{\left(-7\right)\times\dfrac{\dfrac{\dfrac{42}{5}}{\dfrac{7}{12}}}{-\dfrac{45}{2}}\times\left(-\dfrac{120}{11}\right)\times\left(-\dfrac{45}{2}-\dfrac{42}{5}\right)\times\dfrac{\dfrac{\dfrac{-\dfrac{63}{2}}{-\dfrac{63}{2}}}{-7}}{-\dfrac{45}{2}}}}{-3}}{-\dfrac{63}{2}}\\&=&-3+\dfrac{12}{5}+\dfrac{\dfrac{\dfrac{-3-9-7+9}{-3}}{\dfrac{7}{12}-\dfrac{193}{11}+\dfrac{45}{2}-\dfrac{186}{35}-0+\dfrac{7}{12}}}{2}+\dfrac{\dfrac{\dfrac{\dfrac{\dfrac{\dfrac{12}{5}}{-7-2-9+\dfrac{12}{5}+9-\dfrac{7}{12}+\dfrac{40}{7}}}{\left(-\dfrac{120}{11}\right)\times\left(-7\right)\times\left(-\dfrac{45}{2}\right)\times2-\dfrac{38}{11}-\left(0-3+\dfrac{38}{11}\right)}}{\left(-7\right)\times\dfrac{\dfrac{\dfrac{42}{5}}{\dfrac{7}{12}}}{-\dfrac{45}{2}}\times\left(-\dfrac{120}{11}\right)\times\left(-\dfrac{45}{2}-\dfrac{42}{5}\right)\times\dfrac{\dfrac{\dfrac{-\dfrac{63}{2}}{-\dfrac{63}{2}}}{-7}}{-\dfrac{45}{2}}}}{-3}}{-\dfrac{63}{2}}\\&=&-3+\dfrac{12}{5}+\dfrac{\dfrac{\dfrac{-3-9-7+9}{-3}}{\dfrac{7}{12}-\dfrac{193}{11}+\dfrac{45}{2}-\dfrac{186}{35}-0+\dfrac{7}{12}}}{2}+\dfrac{\dfrac{\dfrac{\dfrac{\dfrac{\dfrac{12}{5}}{-9-9+\dfrac{12}{5}+9-\dfrac{7}{12}+\dfrac{40}{7}}}{\left(-\dfrac{120}{11}\right)\times\left(-7\right)\times\left(-\dfrac{45}{2}\right)\times2-\dfrac{38}{11}-\left(0-3+\dfrac{38}{11}\right)}}{\left(-7\right)\times\dfrac{\dfrac{\dfrac{42}{5}}{\dfrac{7}{12}}}{-\dfrac{45}{2}}\times\left(-\dfrac{120}{11}\right)\times\left(-\dfrac{45}{2}-\dfrac{42}{5}\right)\times\dfrac{\dfrac{\dfrac{-\dfrac{63}{2}}{-\dfrac{63}{2}}}{-7}}{-\dfrac{45}{2}}}}{-3}}{-\dfrac{63}{2}}\\&=&-3+\dfrac{12}{5}+\dfrac{\dfrac{\dfrac{-3-9-7+9}{-3}}{\dfrac{7}{12}-\dfrac{193}{11}+\dfrac{45}{2}-\dfrac{186}{35}-0+\dfrac{7}{12}}}{2}+\dfrac{\dfrac{\dfrac{\dfrac{\dfrac{\dfrac{12}{5}}{-18+\dfrac{12}{5}+9-\dfrac{7}{12}+\dfrac{40}{7}}}{\left(-\dfrac{120}{11}\right)\times\left(-7\right)\times\left(-\dfrac{45}{2}\right)\times2-\dfrac{38}{11}-\left(0-3+\dfrac{38}{11}\right)}}{\left(-7\right)\times\dfrac{\dfrac{\dfrac{42}{5}}{\dfrac{7}{12}}}{-\dfrac{45}{2}}\times\left(-\dfrac{120}{11}\right)\times\left(-\dfrac{45}{2}-\dfrac{42}{5}\right)\times\dfrac{\dfrac{\dfrac{-\dfrac{63}{2}}{-\dfrac{63}{2}}}{-7}}{-\dfrac{45}{2}}}}{-3}}{-\dfrac{63}{2}}\\&=&-3+\dfrac{12}{5}+\dfrac{\dfrac{\dfrac{-3-9-7+9}{-3}}{\dfrac{7}{12}-\dfrac{193}{11}+\dfrac{45}{2}-\dfrac{186}{35}-0+\dfrac{7}{12}}}{2}+\dfrac{\dfrac{\dfrac{\dfrac{\dfrac{\dfrac{12}{5}}{-18+\dfrac{12}{5}+\dfrac{101}{12}+\dfrac{40}{7}}}{\left(-\dfrac{120}{11}\right)\times\left(-7\right)\times\left(-\dfrac{45}{2}\right)\times2-\dfrac{38}{11}-\left(0-3+\dfrac{38}{11}\right)}}{\left(-7\right)\times\dfrac{\dfrac{\dfrac{42}{5}}{\dfrac{7}{12}}}{-\dfrac{45}{2}}\times\left(-\dfrac{120}{11}\right)\times\left(-\dfrac{45}{2}-\dfrac{42}{5}\right)\times\dfrac{\dfrac{\dfrac{-\dfrac{63}{2}}{-\dfrac{63}{2}}}{-7}}{-\dfrac{45}{2}}}}{-3}}{-\dfrac{63}{2}}\\&=&-3+\dfrac{12}{5}+\dfrac{\dfrac{\dfrac{-3-9-7+9}{-3}}{\dfrac{7}{12}-\dfrac{193}{11}+\dfrac{45}{2}-\dfrac{186}{35}-0+\dfrac{7}{12}}}{2}+\dfrac{\dfrac{\dfrac{\dfrac{\dfrac{\dfrac{12}{5}}{-18+\dfrac{12}{5}+\dfrac{1187}{84}}}{\left(-\dfrac{120}{11}\right)\times\left(-7\right)\times\left(-\dfrac{45}{2}\right)\times2-\dfrac{38}{11}-\left(0-3+\dfrac{38}{11}\right)}}{\left(-7\right)\times\dfrac{\dfrac{\dfrac{42}{5}}{\dfrac{7}{12}}}{-\dfrac{45}{2}}\times\left(-\dfrac{120}{11}\right)\times\left(-\dfrac{45}{2}-\dfrac{42}{5}\right)\times\dfrac{\dfrac{\dfrac{-\dfrac{63}{2}}{-\dfrac{63}{2}}}{-7}}{-\dfrac{45}{2}}}}{-3}}{-\dfrac{63}{2}}\\&=&-3+\dfrac{12}{5}+\dfrac{\dfrac{\dfrac{-3-9-7+9}{-3}}{\dfrac{7}{12}-\dfrac{193}{11}+\dfrac{45}{2}-\dfrac{186}{35}-0+\dfrac{7}{12}}}{2}+\dfrac{\dfrac{\dfrac{\dfrac{\dfrac{\dfrac{12}{5}}{-18+\dfrac{12}{5}+\dfrac{1187}{84}}}{\dfrac{840}{11}\times\left(-\dfrac{45}{2}\right)\times2-\dfrac{38}{11}-\left(0-3+\dfrac{38}{11}\right)}}{\left(-7\right)\times\dfrac{\dfrac{\dfrac{42}{5}}{\dfrac{7}{12}}}{-\dfrac{45}{2}}\times\left(-\dfrac{120}{11}\right)\times\left(-\dfrac{45}{2}-\dfrac{42}{5}\right)\times\dfrac{\dfrac{\dfrac{-\dfrac{63}{2}}{-\dfrac{63}{2}}}{-7}}{-\dfrac{45}{2}}}}{-3}}{-\dfrac{63}{2}}\\&=&-3+\dfrac{12}{5}+\dfrac{\dfrac{\dfrac{-3-9-7+9}{-3}}{\dfrac{7}{12}-\dfrac{193}{11}+\dfrac{45}{2}-\dfrac{186}{35}-0+\dfrac{7}{12}}}{2}+\dfrac{\dfrac{\dfrac{\dfrac{\dfrac{\dfrac{12}{5}}{-18+\dfrac{12}{5}+\dfrac{1187}{84}}}{\left(-\dfrac{18900}{11}\right)\times2-\dfrac{38}{11}-\left(0-3+\dfrac{38}{11}\right)}}{\left(-7\right)\times\dfrac{\dfrac{\dfrac{42}{5}}{\dfrac{7}{12}}}{-\dfrac{45}{2}}\times\left(-\dfrac{120}{11}\right)\times\left(-\dfrac{45}{2}-\dfrac{42}{5}\right)\times\dfrac{\dfrac{\dfrac{-\dfrac{63}{2}}{-\dfrac{63}{2}}}{-7}}{-\dfrac{45}{2}}}}{-3}}{-\dfrac{63}{2}}\\&=&-3+\dfrac{12}{5}+\dfrac{\dfrac{\dfrac{-3-9-7+9}{-3}}{\dfrac{7}{12}-\dfrac{193}{11}+\dfrac{45}{2}-\dfrac{186}{35}-0+\dfrac{7}{12}}}{2}+\dfrac{\dfrac{\dfrac{\dfrac{\dfrac{\dfrac{12}{5}}{-18+\dfrac{12}{5}+\dfrac{1187}{84}}}{-\dfrac{37800}{11}-\dfrac{38}{11}-\left(0-3+\dfrac{38}{11}\right)}}{\left(-7\right)\times\dfrac{\dfrac{\dfrac{42}{5}}{\dfrac{7}{12}}}{-\dfrac{45}{2}}\times\left(-\dfrac{120}{11}\right)\times\left(-\dfrac{45}{2}-\dfrac{42}{5}\right)\times\dfrac{\dfrac{\dfrac{-\dfrac{63}{2}}{-\dfrac{63}{2}}}{-7}}{-\dfrac{45}{2}}}}{-3}}{-\dfrac{63}{2}}\\&=&-3+\dfrac{12}{5}+\dfrac{\dfrac{\dfrac{-3-9-7+9}{-3}}{\dfrac{7}{12}-\dfrac{193}{11}+\dfrac{45}{2}-\dfrac{186}{35}-0+\dfrac{7}{12}}}{2}+\dfrac{\dfrac{\dfrac{\dfrac{\dfrac{\dfrac{12}{5}}{-18+\dfrac{12}{5}+\dfrac{1187}{84}}}{-\dfrac{37800}{11}-\dfrac{38}{11}-\left(-3+\dfrac{38}{11}\right)}}{\left(-7\right)\times\dfrac{\dfrac{\dfrac{42}{5}}{\dfrac{7}{12}}}{-\dfrac{45}{2}}\times\left(-\dfrac{120}{11}\right)\times\left(-\dfrac{45}{2}-\dfrac{42}{5}\right)\times\dfrac{\dfrac{\dfrac{-\dfrac{63}{2}}{-\dfrac{63}{2}}}{-7}}{-\dfrac{45}{2}}}}{-3}}{-\dfrac{63}{2}}\\&=&-3+\dfrac{12}{5}+\dfrac{\dfrac{\dfrac{-3-9-7+9}{-3}}{\dfrac{7}{12}-\dfrac{193}{11}+\dfrac{45}{2}-\dfrac{186}{35}-0+\dfrac{7}{12}}}{2}+\dfrac{\dfrac{\dfrac{\dfrac{\dfrac{\dfrac{12}{5}}{-18+\dfrac{12}{5}+\dfrac{1187}{84}}}{-\dfrac{37800}{11}-\dfrac{38}{11}-\dfrac{5}{11}}}{\left(-7\right)\times\dfrac{\dfrac{\dfrac{42}{5}}{\dfrac{7}{12}}}{-\dfrac{45}{2}}\times\left(-\dfrac{120}{11}\right)\times\left(-\dfrac{45}{2}-\dfrac{42}{5}\right)\times\dfrac{\dfrac{\dfrac{-\dfrac{63}{2}}{-\dfrac{63}{2}}}{-7}}{-\dfrac{45}{2}}}}{-3}}{-\dfrac{63}{2}}\\&=&-3+\dfrac{12}{5}+\dfrac{\dfrac{\dfrac{-3-9-7+9}{-3}}{\dfrac{7}{12}-\dfrac{193}{11}+\dfrac{45}{2}-\dfrac{186}{35}-0+\dfrac{7}{12}}}{2}+\dfrac{\dfrac{\dfrac{\dfrac{\dfrac{\dfrac{12}{5}}{-18+\dfrac{12}{5}+\dfrac{1187}{84}}}{-\dfrac{37800}{11}-\dfrac{38}{11}-\dfrac{5}{11}}}{\left(-7\right)\times\dfrac{\dfrac{72}{5}}{-\dfrac{45}{2}}\times\left(-\dfrac{120}{11}\right)\times\left(-\dfrac{45}{2}-\dfrac{42}{5}\right)\times\dfrac{\dfrac{\dfrac{-\dfrac{63}{2}}{-\dfrac{63}{2}}}{-7}}{-\dfrac{45}{2}}}}{-3}}{-\dfrac{63}{2}}\\&=&-3+\dfrac{12}{5}+\dfrac{\dfrac{\dfrac{-3-9-7+9}{-3}}{\dfrac{7}{12}-\dfrac{193}{11}+\dfrac{45}{2}-\dfrac{186}{35}-0+\dfrac{7}{12}}}{2}+\dfrac{\dfrac{\dfrac{\dfrac{\dfrac{\dfrac{12}{5}}{-18+\dfrac{12}{5}+\dfrac{1187}{84}}}{-\dfrac{37800}{11}-\dfrac{38}{11}-\dfrac{5}{11}}}{\left(-7\right)\times\left(-\dfrac{16}{25}\right)\times\left(-\dfrac{120}{11}\right)\times\left(-\dfrac{45}{2}-\dfrac{42}{5}\right)\times\dfrac{\dfrac{\dfrac{-\dfrac{63}{2}}{-\dfrac{63}{2}}}{-7}}{-\dfrac{45}{2}}}}{-3}}{-\dfrac{63}{2}}\\&=&-3+\dfrac{12}{5}+\dfrac{\dfrac{\dfrac{-3-9-7+9}{-3}}{\dfrac{7}{12}+\dfrac{109}{22}-\dfrac{186}{35}-0+\dfrac{7}{12}}}{2}+\dfrac{\dfrac{\dfrac{\dfrac{\dfrac{\dfrac{12}{5}}{-18+\dfrac{12}{5}+\dfrac{1187}{84}}}{-\dfrac{37800}{11}-\dfrac{38}{11}-\dfrac{5}{11}}}{\left(-7\right)\times\left(-\dfrac{16}{25}\right)\times\left(-\dfrac{120}{11}\right)\times\left(-\dfrac{45}{2}-\dfrac{42}{5}\right)\times\dfrac{\dfrac{\dfrac{-\dfrac{63}{2}}{-\dfrac{63}{2}}}{-7}}{-\dfrac{45}{2}}}}{-3}}{-\dfrac{63}{2}}\\&=&-3+\dfrac{12}{5}+\dfrac{\dfrac{\dfrac{-3-9-7+9}{-3}}{\dfrac{7}{12}-\dfrac{277}{770}-0+\dfrac{7}{12}}}{2}+\dfrac{\dfrac{\dfrac{\dfrac{\dfrac{\dfrac{12}{5}}{-18+\dfrac{12}{5}+\dfrac{1187}{84}}}{-\dfrac{37800}{11}-\dfrac{38}{11}-\dfrac{5}{11}}}{\left(-7\right)\times\left(-\dfrac{16}{25}\right)\times\left(-\dfrac{120}{11}\right)\times\left(-\dfrac{45}{2}-\dfrac{42}{5}\right)\times\dfrac{\dfrac{\dfrac{-\dfrac{63}{2}}{-\dfrac{63}{2}}}{-7}}{-\dfrac{45}{2}}}}{-3}}{-\dfrac{63}{2}}\\&=&-3+\dfrac{12}{5}+\dfrac{\dfrac{\dfrac{-3-9-7+9}{-3}}{\dfrac{7}{12}-\dfrac{277}{770}+\dfrac{7}{12}}}{2}+\dfrac{\dfrac{\dfrac{\dfrac{\dfrac{\dfrac{12}{5}}{-18+\dfrac{12}{5}+\dfrac{1187}{84}}}{-\dfrac{37800}{11}-\dfrac{38}{11}-\dfrac{5}{11}}}{\left(-7\right)\times\left(-\dfrac{16}{25}\right)\times\left(-\dfrac{120}{11}\right)\times\left(-\dfrac{45}{2}-\dfrac{42}{5}\right)\times\dfrac{\dfrac{\dfrac{-\dfrac{63}{2}}{-\dfrac{63}{2}}}{-7}}{-\dfrac{45}{2}}}}{-3}}{-\dfrac{63}{2}}\\&=&-3+\dfrac{12}{5}+\dfrac{\dfrac{\dfrac{-3-9-7+9}{-3}}{\dfrac{7}{12}-\dfrac{277}{770}+\dfrac{7}{12}}}{2}+\dfrac{\dfrac{\dfrac{\dfrac{\dfrac{\dfrac{12}{5}}{-\dfrac{78}{5}+\dfrac{1187}{84}}}{-\dfrac{37800}{11}-\dfrac{38}{11}-\dfrac{5}{11}}}{\left(-7\right)\times\left(-\dfrac{16}{25}\right)\times\left(-\dfrac{120}{11}\right)\times\left(-\dfrac{45}{2}-\dfrac{42}{5}\right)\times\dfrac{\dfrac{\dfrac{-\dfrac{63}{2}}{-\dfrac{63}{2}}}{-7}}{-\dfrac{45}{2}}}}{-3}}{-\dfrac{63}{2}}\\&=&-3+\dfrac{12}{5}+\dfrac{\dfrac{\dfrac{-3-9-7+9}{-3}}{\dfrac{7}{12}-\dfrac{277}{770}+\dfrac{7}{12}}}{2}+\dfrac{\dfrac{\dfrac{\dfrac{\dfrac{\dfrac{12}{5}}{-\dfrac{617}{420}}}{-\dfrac{37800}{11}-\dfrac{38}{11}-\dfrac{5}{11}}}{\left(-7\right)\times\left(-\dfrac{16}{25}\right)\times\left(-\dfrac{120}{11}\right)\times\left(-\dfrac{45}{2}-\dfrac{42}{5}\right)\times\dfrac{\dfrac{\dfrac{-\dfrac{63}{2}}{-\dfrac{63}{2}}}{-7}}{-\dfrac{45}{2}}}}{-3}}{-\dfrac{63}{2}}\\&=&-3+\dfrac{12}{5}+\dfrac{\dfrac{\dfrac{-3-9-7+9}{-3}}{\dfrac{7}{12}-\dfrac{277}{770}+\dfrac{7}{12}}}{2}+\dfrac{\dfrac{\dfrac{\dfrac{\dfrac{\dfrac{12}{5}}{-\dfrac{617}{420}}}{-\dfrac{37838}{11}-\dfrac{5}{11}}}{\left(-7\right)\times\left(-\dfrac{16}{25}\right)\times\left(-\dfrac{120}{11}\right)\times\left(-\dfrac{45}{2}-\dfrac{42}{5}\right)\times\dfrac{\dfrac{\dfrac{-\dfrac{63}{2}}{-\dfrac{63}{2}}}{-7}}{-\dfrac{45}{2}}}}{-3}}{-\dfrac{63}{2}}\\&=&-3+\dfrac{12}{5}+\dfrac{\dfrac{\dfrac{-3-9-7+9}{-3}}{\dfrac{7}{12}-\dfrac{277}{770}+\dfrac{7}{12}}}{2}+\dfrac{\dfrac{\dfrac{\dfrac{\dfrac{\dfrac{12}{5}}{-\dfrac{617}{420}}}{-\dfrac{37843}{11}}}{\left(-7\right)\times\left(-\dfrac{16}{25}\right)\times\left(-\dfrac{120}{11}\right)\times\left(-\dfrac{45}{2}-\dfrac{42}{5}\right)\times\dfrac{\dfrac{\dfrac{-\dfrac{63}{2}}{-\dfrac{63}{2}}}{-7}}{-\dfrac{45}{2}}}}{-3}}{-\dfrac{63}{2}}\\&=&-3+\dfrac{12}{5}+\dfrac{\dfrac{\dfrac{-3-9-7+9}{-3}}{\dfrac{7}{12}-\dfrac{277}{770}+\dfrac{7}{12}}}{2}+\dfrac{\dfrac{\dfrac{\dfrac{\dfrac{\dfrac{12}{5}}{-\dfrac{617}{420}}}{-\dfrac{37843}{11}}}{\left(-7\right)\times\dfrac{384}{55}\times\left(-\dfrac{45}{2}-\dfrac{42}{5}\right)\times\dfrac{\dfrac{\dfrac{-\dfrac{63}{2}}{-\dfrac{63}{2}}}{-7}}{-\dfrac{45}{2}}}}{-3}}{-\dfrac{63}{2}}\\&=&-3+\dfrac{12}{5}+\dfrac{\dfrac{\dfrac{-3-9-7+9}{-3}}{\dfrac{7}{12}-\dfrac{277}{770}+\dfrac{7}{12}}}{2}+\dfrac{\dfrac{\dfrac{\dfrac{\dfrac{\dfrac{12}{5}}{-\dfrac{617}{420}}}{-\dfrac{37843}{11}}}{\left(-7\right)\times\dfrac{384}{55}\times-\dfrac{309}{10}\times\dfrac{\dfrac{\dfrac{-\dfrac{63}{2}}{-\dfrac{63}{2}}}{-7}}{-\dfrac{45}{2}}}}{-3}}{-\dfrac{63}{2}}\\&=&-3+\dfrac{12}{5}+\dfrac{\dfrac{\dfrac{-3-9-7+9}{-3}}{\dfrac{7}{12}-\dfrac{277}{770}+\dfrac{7}{12}}}{2}+\dfrac{\dfrac{\dfrac{\dfrac{\dfrac{\dfrac{12}{5}}{-\dfrac{617}{420}}}{-\dfrac{37843}{11}}}{\left(-7\right)\times\dfrac{384}{55}\times-\dfrac{309}{10}\times\dfrac{\dfrac{1}{-7}}{-\dfrac{45}{2}}}}{-3}}{-\dfrac{63}{2}}\\&=&-3+\dfrac{12}{5}+\dfrac{\dfrac{\dfrac{-3-9-7+9}{-3}}{\dfrac{7}{12}-\dfrac{277}{770}+\dfrac{7}{12}}}{2}+\dfrac{\dfrac{\dfrac{\dfrac{\dfrac{\dfrac{12}{5}}{-\dfrac{617}{420}}}{-\dfrac{37843}{11}}}{\left(-7\right)\times\dfrac{384}{55}\times-\dfrac{309}{10}\times\dfrac{-\dfrac{1}{7}}{-\dfrac{45}{2}}}}{-3}}{-\dfrac{63}{2}}\\&=&-3+\dfrac{12}{5}+\dfrac{\dfrac{\dfrac{-3-9-7+9}{-3}}{\dfrac{7}{12}-\dfrac{277}{770}+\dfrac{7}{12}}}{2}+\dfrac{\dfrac{\dfrac{\dfrac{\dfrac{\dfrac{12}{5}}{-\dfrac{617}{420}}}{-\dfrac{37843}{11}}}{\left(-7\right)\times\dfrac{384}{55}\times-\dfrac{309}{10}\times\dfrac{2}{315}}}{-3}}{-\dfrac{63}{2}}\\&=&-3+\dfrac{12}{5}+\dfrac{\dfrac{\dfrac{-12-7+9}{-3}}{\dfrac{7}{12}-\dfrac{277}{770}+\dfrac{7}{12}}}{2}+\dfrac{\dfrac{\dfrac{\dfrac{\dfrac{\dfrac{12}{5}}{-\dfrac{617}{420}}}{-\dfrac{37843}{11}}}{\left(-7\right)\times\dfrac{384}{55}\times-\dfrac{309}{10}\times\dfrac{2}{315}}}{-3}}{-\dfrac{63}{2}}\\&=&-3+\dfrac{12}{5}+\dfrac{\dfrac{\dfrac{-19+9}{-3}}{\dfrac{7}{12}-\dfrac{277}{770}+\dfrac{7}{12}}}{2}+\dfrac{\dfrac{\dfrac{\dfrac{\dfrac{\dfrac{12}{5}}{-\dfrac{617}{420}}}{-\dfrac{37843}{11}}}{\left(-7\right)\times\dfrac{384}{55}\times-\dfrac{309}{10}\times\dfrac{2}{315}}}{-3}}{-\dfrac{63}{2}}\\&=&-3+\dfrac{12}{5}+\dfrac{\dfrac{\dfrac{-10}{-3}}{\dfrac{7}{12}-\dfrac{277}{770}+\dfrac{7}{12}}}{2}+\dfrac{\dfrac{\dfrac{\dfrac{\dfrac{\dfrac{12}{5}}{-\dfrac{617}{420}}}{-\dfrac{37843}{11}}}{\left(-7\right)\times\dfrac{384}{55}\times-\dfrac{309}{10}\times\dfrac{2}{315}}}{-3}}{-\dfrac{63}{2}}\\&=&-3+\dfrac{12}{5}+\dfrac{\dfrac{\dfrac{-10}{-3}}{\dfrac{1033}{4620}+\dfrac{7}{12}}}{2}+\dfrac{\dfrac{\dfrac{\dfrac{\dfrac{\dfrac{12}{5}}{-\dfrac{617}{420}}}{-\dfrac{37843}{11}}}{\left(-7\right)\times\dfrac{384}{55}\times-\dfrac{309}{10}\times\dfrac{2}{315}}}{-3}}{-\dfrac{63}{2}}\\&=&-3+\dfrac{12}{5}+\dfrac{\dfrac{\dfrac{-10}{-3}}{\dfrac{932}{1155}}}{2}+\dfrac{\dfrac{\dfrac{\dfrac{\dfrac{\dfrac{12}{5}}{-\dfrac{617}{420}}}{-\dfrac{37843}{11}}}{\left(-7\right)\times\dfrac{384}{55}\times-\dfrac{309}{10}\times\dfrac{2}{315}}}{-3}}{-\dfrac{63}{2}}\\&=&-3+\dfrac{12}{5}+\dfrac{\dfrac{\dfrac{-10}{-3}}{\dfrac{932}{1155}}}{2}+\dfrac{\dfrac{\dfrac{\dfrac{-\dfrac{1008}{617}}{-\dfrac{37843}{11}}}{\left(-7\right)\times\dfrac{384}{55}\times-\dfrac{309}{10}\times\dfrac{2}{315}}}{-3}}{-\dfrac{63}{2}}\\&=&-3+\dfrac{12}{5}+\dfrac{\dfrac{\dfrac{-10}{-3}}{\dfrac{932}{1155}}}{2}+\dfrac{\dfrac{\dfrac{\dfrac{11088}{23349131}}{\left(-7\right)\times\dfrac{384}{55}\times-\dfrac{309}{10}\times\dfrac{2}{315}}}{-3}}{-\dfrac{63}{2}}\\&=&-3+\dfrac{12}{5}+\dfrac{\dfrac{\dfrac{-10}{-3}}{\dfrac{932}{1155}}}{2}+\dfrac{\dfrac{\dfrac{\dfrac{11088}{23349131}}{\left(-\dfrac{2688}{55}\right)\times-\dfrac{309}{10}\times\dfrac{2}{315}}}{-3}}{-\dfrac{63}{2}}\\&=&-3+\dfrac{12}{5}+\dfrac{\dfrac{\dfrac{-10}{-3}}{\dfrac{932}{1155}}}{2}+\dfrac{\dfrac{\dfrac{\dfrac{11088}{23349131}}{\dfrac{415296}{275}\times\dfrac{2}{315}}}{-3}}{-\dfrac{63}{2}}\\&=&-3+\dfrac{12}{5}+\dfrac{\dfrac{\dfrac{-10}{-3}}{\dfrac{932}{1155}}}{2}+\dfrac{\dfrac{\dfrac{\dfrac{11088}{23349131}}{\dfrac{13184}{1375}}}{-3}}{-\dfrac{63}{2}}\\&=&-3+\dfrac{12}{5}+\dfrac{\dfrac{\dfrac{10}{3}}{\dfrac{932}{1155}}}{2}+\dfrac{\dfrac{\dfrac{\dfrac{11088}{23349131}}{\dfrac{13184}{1375}}}{-3}}{-\dfrac{63}{2}}\\&=&-3+\dfrac{12}{5}+\dfrac{\dfrac{1925}{466}}{2}+\dfrac{\dfrac{\dfrac{\dfrac{11088}{23349131}}{\dfrac{13184}{1375}}}{-3}}{-\dfrac{63}{2}}\\&=&-3+\dfrac{12}{5}+\dfrac{1925}{932}+\dfrac{\dfrac{\dfrac{\dfrac{11088}{23349131}}{\dfrac{13184}{1375}}}{-3}}{-\dfrac{63}{2}}\\&=&-3+\dfrac{12}{5}+\dfrac{1925}{932}+\dfrac{\dfrac{\dfrac{15246000}{307834943104}}{-3}}{-\dfrac{63}{2}}\\&=&-3+\dfrac{12}{5}+\dfrac{1925}{932}+\dfrac{-\dfrac{15246000}{923504829312}}{-\dfrac{63}{2}}\\&=&-3+\dfrac{12}{5}+\dfrac{1925}{932}+\dfrac{30492000}{58180804246656}\\&=&-\dfrac{3}{5}+\dfrac{1925}{932}+\dfrac{30492000}{58180804246656}\\&=&\dfrac{6829}{4660}+\dfrac{30492000}{58180804246656}\\&=&\dfrac{397316854293133824}{271122547789416960}\\
\end{eqnarray*}