Understand Ratios

What is the ratio of red apples to green apples?

• 7 apples to 3 green

• 4 red apples to 7 apples

• 4 red apples to 3 green apples

• 3 green apples to 4 red apples

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

A class has 15 boys and 20 girls. What is the boy : girl ratio in simplest form?

• 4 to 5

• 10 to 13

• 3:4

• 3:5

Which ratio represents the relationship of bananas to apples?

• 3:8

• 8:3

• 3:2

• 2:3

What is a Ratio?

• Is a comparison of two quantities 

• To multiply two fractions 

• A number over another number

• Two decimals that can be multiplied

What is the third way to write this ratio? 

• 4/5

• 4 with 5

• 4 to 5

• 4 two 5

What is the missing number in the ratio table?

• 72

• 85

• 76

• 90

What is the ratio of the blue rectangles to white rectangles?

• 1/6

• 1/3

• 6/2

• 2/3

There are 4 birds and 6 snakes. What is the ratio of birds to snakes?

• 4:6

• 4/6

• 4 and 6

• 4 to 6

Patrick has 2 black, 3 red, and 5 white toy cars. What is the ratio of red toy cars to all the toy cars?

• 3:5

• 1:3

• 3:11

• 3:10