Question

For the following equations, find the ratio of a to b. Be sure to show all of your work.

3a=6b

15a=5b

Answer 1

1. a/b = 2

2. a/b = 1/3

Explanation:

3a=6b

We want to find a/b

Divide each side by b

3a/b=6b/b

3a/b = 6

Divide each side by 3

3a/3b =6/3

a/b = 2

15a=5b

We want to find a/b

Divide each side by b

15a/b = 5b/b

15a/b = 5

Divide each side by 15

15 a/15b = 5/15

a/b = 1/3