Question

Insert three rational number between $4$ and $4.5$.

Answer 1

A rational number is a number which can be expressed in the form $\frac{p}{q}$.

$4.1,4.2$ and $4.3$ can be expressed as $\frac{42}{10}$, $\frac{43}{10}$ and $\frac{41}{10}$ respectively.

Thus three rational numbers between $4$ and $4.5$ is $4.1,4.2,4.3$