Making Ratios

The ratio of boys to girls in Ella's grade is 3 to 4. The ratio of boys to girls in Minh's grade is 4 to 5. Each grade has a total of 20 girls. How many boys are in each grade?

• Ella's grade has 10 boys and Minh's grade has 16 boys.

• Ella's grade has 15 boys and Minh's grade has 20 boys.

• Ella's grade has 15 boys and Minh's grade has 16 boys.

• Ella's grade has 12 boys and Minh's grade has 20 boys.

The ratio of dogs to cats at the Joliet Animal Shelter is 6:7. The ratio of dogs to cats at the Grundy County Animal Shelter is 5:8. If each shelter has 30 dogs, how many cats does each shelter have?

• The Joliet Animal Shelter has 35 cats and the Grundy County Animal Shelter has 48 cats.

• The Joliet Animal Shelter has 42 cats and the Grundy County Animal Shelter has 40 cats.

• The Joliet Animal Shelter has 48 cats and the Grundy County Animal Shelter has 32 cats.

• The Joliet Animal Shelter has 30 cats and the Grundy County Animal Shelter has 45 cats.

Choose the three ratios that are equivalent to

10:12

• 2:6

• 5:6

• 20:24

• 30:36

• 50:65

Aiko has 5 shirts for every 3 pairs of pants. Her brother Haro has 7 shirts for every 4 pairs of pants. Complete the ratio tables to help you. Which sibling has the greater ratio of shirts to pants?

• Aiko

• Haro

What is a Ratio?

• Is a comparison of two quantities 

• A rate with a denominator of one

• It is when the only factor the numerator and denominator share is a one 

• Two decimals that can be multiplied

What is the ratio of the number of days it rained last week to the number of days it did NOT rain?

• 4:3

• 3:4

• 3:7

• 4:7

Michael made 12 out of 18 free throws at basketball practice. What is the ratio of baskets made to the total number of baskets?

• 12 to 18

• 3 to 2

• 2:3

• 18/30

The ratio of blue cards to green cards is 2 to 5. An equivalent ratio to 2 to 5 would be ​ (a)   to ​ (b)   .

• 14

• 35

• 2

• 5

• 7

• 3

• 10

• 13

• A

• B

• C

• D

Shown in the double number line is a representation for a smoothie recipe that calls for frozen strawberries and milk.



If 10 cups of strawberries are used with 15 ounces of milk, will the recipe taste the same?

• Yes, because the ratio 10:15 is an equivalent ratio.

• Yes, because this is the amount needed to make 5 batches.

• No, because the ratio 10:15 is equal to 1:1.5 instead of 2:5

• No, because the milk could make 5 batches and the strawberries could make 4 batches.