Question

Write $\frac{9}{-7}$with a positive denominator.

Answer 1

Given,$\frac{9}{-7}$

We have to make the denominator positive.

For this, we multiply its numerator and denominator by$-1$ to get an equivalent rational number with a positive rational number.

Thus,

$\frac{9}{-7}=\frac{9\times (-1)}{-7\times (-1)}=\frac{-9}{7}$

Hence, the required rational number with a positive denominator is $\frac{-9}{7}$