Answer
$\frac{2}{45}$
Work Step by Step
$(\frac{2}{3})^{2} - (\frac{4}{5} - \frac{3}{10}) \div \frac{5}{4}$ =
$\frac{4}{9} - (\frac{8}{10} - \frac{3}{10}) \div \frac{5}{4}$ =
$\frac{4}{9} - \frac{5}{10} \div \frac{5}{4}$ =
$\frac{4}{9} - \frac{5}{10} \times \frac{4}{5}$ =
$\frac{4}{9} - \frac{20}{50}$ =
$\frac{4}{9} - \frac{2}{5}$ =
$\frac{20}{45} - \frac{18}{45}$ =
$\frac{2}{45}$
