Jambmaths question:
Simplify $\tfrac{3}{5}\div (\tfrac{2}{7}\times \tfrac{4}{3}\div \tfrac{4}{9})$
Option A:
$\tfrac{21}{6}$
Option B:
$\tfrac{6}{7}$
Option C:
$\tfrac{4}{5}$
Option D:
$\tfrac{7}{10}$
Jamb Maths Solution:
$\begin{align} & \tfrac{3}{5}\div (\tfrac{2}{7}\times \tfrac{4}{3}\div \tfrac{4}{9})=\tfrac{3}{5}\div (\tfrac{2}{7}\times \tfrac{4}{3}\times \tfrac{9}{4}) \\ & =\tfrac{3}{5}\div \tfrac{6}{7} \\ & =\tfrac{3}{5}\times \tfrac{7}{6}=\tfrac{7}{10} \end{align}$
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