CPM Homework Help : MC2 Problem 3-102

Rewrite each percent as a fraction and each fraction as a percent.

Converting Percents to Fractions:

A percent is a portion out of $100$ . Given any percent, one can set it as a fraction over $100$ and simplify to get the desired fraction.

Converting Fractions to Percents:

Given any fraction, divide the numerator by the denominator to get the decimal form. At this point, multiply the decimal by $100$ to get the percent form.

$20\%$
Answer (a):
$\frac{20}{100} = \frac{1}{5}$

$\frac { 2 } { 5 }$
Answer (b):
$\frac{2}{5} = .4$

$75\%$

$\frac { 2 } { 3 }$