Ratios and Equivalent Ratios

What is a ratio?

• A rate with a denominator of 1

• it's when the only factor the numerator and denominator share is 1

• A comparison of two quantities

• two decimals that can be multiplied

What is the ratio of dogs to cats?

• 2:3

• 3:2

What is the ratio of red apples to green apples

• 3:5

• 5:3

What is the ratio of green marbles to yellow marbles?

• 3:2

• 3:1

• 3:3

• 2:3

Nysa 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 3

• 5 to 10

A baseball team has 16 girls and 8 boys. What is the ratio of boys to total players? (select all that apply (2))

• 1:3

• 8:16

• 1:2

• 8:24

Lizzie purchased 25 fruits at the farmer's market. Ten were apples, and the rest were peaches. What is the ratio of peaches to apples. (Select all that apply (2))

• 3:2

• 2:3

• 10:15

• 15:10

How do we find equivalent ratios? (choose two answers)

• Adding

• Subtracting

• Multiplying

• Dividing

Which ratios are equivalent to 1:3? (Select all that apply (3)

• 10:30

• 5:20

• 6:18

• 12:36

Are these ratios equivalent to each other?

3:7 12:21

• Yes

• No