RATIOS

What is a ratio?

A ratio is....

• the difference between two numbers

• a comparison of two numbers by division

• a comparison of two numbers by multiplication

• the sum of two numbers

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

A bag of marbles comes with 3 blue marbles, 2 red marbles, and 5 yellow marbles. What is the ratio of red marbles to yellow marbles?

• 2 to 5

• 3 to 5

• 5 to 3

• 5 to 2

There are 5 cups of water and 10 ice cubes. What is the ratio of ice cubes to cups of water? (write as a unit rate)

• 5 : 10

• 1: 2

• 2: 1

• 15 ice cubes

In the fruit bowl, there are 4 apples, 2 bananas, and 5 pears. What is the ratio of pears to ALL fruit?

• 5:4

• 2:5

• 5:11

• 6:5

To make your own hummingbird food, you will need to mix sugar and water in a ratio of 1 to 4. If you use 8 cups of water, how much sugar should I use?

• 1 cup

• 2 cups

• 4 cups

• 8 cups

Tommy has a bag of LEGOS. There are 6 yellow, 3 red, and 8 blue LEGOS. What is the ratio in simplest form of red to yellow LEGOS?

• 1/2

• 2/1

• 6/3

• 3/6

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

• 5 to 10

• 3 to 5

• 5 to 3

Which ratio is equivalent to 8:6?

• 16:14

• 4:3

• 10:8

• 14:12

A reindeer can run 96 miles in 3 hours. At this rate, how many miles can he run in 1 hour?

• 99 miles

• 288 miles

• 93 miles

• 32 miles