How do you solve frac{6}{2} = \frac{21}{n}?

2 Answers
Apr 16, 2018

n=7

Explanation:

Multiply both sides by n

n*6/2=canceln*21/canceln

3n=21

Divide both sides by 3

(cancel3n)/cancel3=21/3

n=7

Apr 16, 2018

n=7

Explanation:

Just cross multiply
When you have two fractions like that across from each other you multiply diagonally so 6*n and 2*21
6n=42
n=7