# How do you write 21 4/5 as an improper fraction?

Nov 5, 2015

$\frac{109}{5}$

#### Explanation:

First, write 21 as a fraction with 5 in the denominator. To do this, multiply it by 5 and put it over 5.
$21 \cdot 5 = 105$
$21 = \frac{105}{5}$

Now add the $\frac{4}{5}$.

$\frac{105}{5} + \frac{4}{5}$

you can combine the numbers on top like so:

$\frac{105 + 4}{5}$

$\frac{109}{5}$