Question

Express $\frac{3}{4}$ as a rational number with denominator:

$-80$

Answer 1

In the fraction $\frac{3}{4}$ the denominator is equal to $4$ and we want that denominator to be equal to $-80.$

Let we will have to multiply $x$ in the numerator and the denominator of the fraction $\frac{3}{4}$ to make denominator equal to $-80.$ So,

$4\times x=-80$

$\Rightarrow x=-20$

Hence,

$\begin{array}{cc}\frac{3}{4}& =\frac{3\times -20}{4\times -20}\\ & \\ & =\frac{-60}{-80}\end{array}$