Question

Express $\frac{13}{-8}$ as a rational number with

denominator $=56$

Answer 1

To make the denominator $56,$ we need to use concept of equivalent fractions. Equivalent fractions are those fractions in which numerator and denominator are multiplied by the same non zero number.

$\frac{13}{-8}=\frac{13\times -7}{-8\times -7}=\frac{-91}{56}$

So, $\frac{13}{-8}$ with $56$ as a denominator is $\frac{-91}{56}.$