# What percent of 80 is 40?

Jan 6, 2017

50%

#### Explanation:

Write as: $\text{ } \frac{40}{80} = \frac{4}{8} = \frac{1}{2}$

color(green)([1/2color(red)(xx1) ] =[1/2color(red)(xx50/50)]=50/100 -> 50%

Note that % is a unit of measurement and is worth $\frac{1}{100}$

so 50% is the same as $50 \times \frac{1}{100} = \frac{50}{100}$