CPM Homework Help : MC1 Problem 7-21

Use a Giant One to change each of the following fractions to a number written as a fraction over $100$ . Then write each portion as a percent.

$\frac { 3 } { 40 }$
Hint (b):
What do you multiply by $40$ to get $100$ ? Use the number in the Giant One.
Answer (b):
$\frac{3}{40\ }\cdot$ $=\frac{7.5}{100}=7.5$