Question

ex 1 sub 2.,..........​

Answer 1

$(( - \frac{2}{5} + \frac{1}{2} - \frac{1}{3} ) \div \frac{7}{15} ) {}^{3} + \frac{1}{8} =$

$( \frac{12 + 15 - 10}{30} \div \frac{7}{15} ) + \frac{1}{8}$

$( \frac{17}{30} \times \frac{15}{7} ) + \frac{1}{8}$

$\frac{17}{14} + \frac{1}{8}$

$\frac{136 + 14}{112} = \frac{75}{56}$