Question

Find the multiplicative inverse of the following:
$\frac{-5}{8}\times \frac{-3}{7}$.

(1 mark)

Answer 1

We know that multiplicative inverse of a rational number a is $\left(\frac{1}{a}\right),suchthata\times \frac{1}{a}=1$.
Multiplicative inverse of $\frac{-5}{8}\times \frac{-3}{7}=\frac{15}{56}is\frac{56}{15}$.

(1 mark)