Question

Which of the following are rational numbers and which are not?

$\frac{4}{5}$

Answer 1

Given : $\frac{4}{5}$

A rational number is defined as a number that can be expressed in the form $\frac{\mathrm{p}}{\mathrm{q}}$ where $\mathrm{p}$ (numerator) and $\mathrm{q}$ (denominator) are integers $(\mathrm{q}\ne 0)$.

So, we can see here $\mathrm{p}=4,\mathrm{q}=5$ and $\mathrm{q}\ne 0$.

Hence, $\frac{4}{5}$ is a Rational Number.