Ratio Math

Use equivalent ratios to find the unknown value.

• 3

• 5

• 30

• 35

Determine whether the ratios are equivalent.

• yes

• no

• maybe

What is the ratio of red toy cars to all the toy cars?

• 3:5

• 1:3

• 3:11

• 3:10

If there are 5 boys and 7 girls, write the ratio of girls to boys.

• 5 to 7

• 7 to 5

• 5 to 12

• 7 to 12

What is the constant of proportionality (in miles per hour) based on the table?

• 45

• 90

• 135

• 2

What is the constant of proportionality?

• $3

• $4

• $2

• $9

Simplify the ratio of
35 : 14

• 5 : 2

• 2 : 5

• 3 : 1

• 35: 14

Mrs. Shelly paid $3 for 6 muffins and Mrs. Kloske paid $9 for 18 muffins.

Do these relationships form equivalent ratios?

• yes, equivalent

• no, not equivalent

Which ratio is equivalent to 5 to 4?

• 25 to 20

• 10 to 12

• 4 to 5

• 15 to 8

Kelly has 10 apps on her iPad. 5 are school apps, 2 are music apps, and 3 are games.

What is the ratio of school apps to game apps?

• 5 to 2

• 3 to 5

• 5 to 10

• 5 to 3