A= [(-\(\frac{3}{5}+\frac{4}{9}\)) : \(\frac{2}{7}\) - (-\(\frac{14}{9}+\frac{2}{5}\)) : \(\frac{2}{7}\)] : (\(\frac{32}{7}.\) \(\frac{71}{2}-\frac{32}{7}\) . \(\frac{51}{2}\))
A= [ (-\(\frac{3}{5}+\frac{2}{5}\)) - (\(\frac{4}{9}+\frac{14}{9}\)) : \(\frac{2}{7}\)] : [ \(\frac{32}{7}\). (\(\frac{71}{2}-\frac{51}{2}\)) ]
A= (-\(\frac{36}{5}\)) : (\(\frac{320}{7}\))
A= - \(\frac{63}{400}\)
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