Question

How do we write $4.5$ as a fraction.

Answer 1

Write $\mathbf{4}\mathbf{.}\mathbf{5}$ as a fraction:

The given decimal is $4.5$.

To convert into fraction, write $4.5$ as $\frac{4.5}{1}$.

Now multiply both numerator and denominator by $10$ for every number after the decimal point:

$\frac{4.5\times 10}{1\times 10}=\frac{45}{10}$

Reduce the fraction:

$\frac{45}{10}=\frac{9}{2}$

Hence, $\mathbf{4}\mathbf{.}\mathbf{5}$ as a fraction form is $\frac{\mathbf{9}}{\mathbf{2}}$.