Question

Write the additive inverse and multiplicative inverse of each of the following.
(i) $\frac{7}{9}$
(ii) $\frac{-3}{5}$

Answer 1

(i)
The additive inverse of $\frac{7}{9}$ is $-\frac{7}{9}$.
The multiplicative inverse of $\frac{7}{9}$ is $\frac{9}{7}$.

(ii)
The additive inverse of $\frac{-3}{5}$ is $\frac{3}{5}$.
The multiplicative inverse of $\frac{-3}{5}$ is $\frac{5}{-3}$. It can also be written as $\frac{-5}{3}$.