Question

What is the multiplicative inverse of $-1\times \frac{-2}{5}$.

Answer 1

Given,

$-1\times \frac{-2}{5}$

$=\frac{2}{5}$

multiplicative inverse of $=\frac{2}{5}$ is $=\frac{5}{2}$

as, $\frac{2}{5}\times \frac{5}{2}=1$