# 45 is what percent of 90?

Sep 18, 2016

50%

#### Explanation:

When you write a proper fraction and then divide, the answer is given as a decimal.

$\frac{45}{90} = 0.5$

To change to percentage form, multiply by 100%.

45/90 xx100%

= 50%

We could also have seen that $\frac{45}{90} = \frac{1}{2}$

$\frac{1}{2}$ is the same as 50%