# 40% of what is 12?

Jun 23, 2016

40% of 30 is 12

#### Explanation:

Convert the percentage to a decimal by using division, just divide the percentage 40% by 100.

$40 \div 100 = 0.4$

Divide $12$ by $0.4$

$\frac{12}{0.4} = 30$

Consider this:

$x$ = 40%
$y$ = 12
$z$ = 30

Divide $x$ by 100

Divide $\frac{x}{100}$ by $y$

$\frac{x}{100} / y$ = $z$

$\frac{40}{100} / 12 = 30$