Question

please answer my question ​

Answer 1

Answer:

a^-1=1/a

$( \frac{1}{4} - \frac{1}{5} ) ^{2} \times (\frac{5}{8} ) ^{ - 1} \\ (\frac{5 - 4}{20} ) ^{2} \times \frac{8}{5} \\ \frac{1}{20 ^{2} } \times \frac{8}{5} \\ \frac{1}{250}$

hope this will help you