Unit 2 Review - Ratios

Match the equivalent ratios.

• 9 : 10

• 1 : 9

• 16 : 8

• 6 : 7

• 12 : 14

• 18 : 20

• 6 : 5

• 4 : 2

• 3 : 27

• 30 : 25

Diego is using a recipe for purple paint that uses 3 cups of blue paint for every 2 cups of red paint.

Diego needs ​ (a)   cups of blue paint for 4 cups of red paint.

Diego needs 15 cups of blue paint for ​ (b)   cups of red paint.

Diego needs ​ ​ (c)   cups of blue paint for 6 cups of red paint.

• 6
• 10
• 9
• 8
• 12
• 3
• 14
• 5

Select the ratio that is equivalent to 2 : 8.

• 3 : 9

• 1 : 4

• 10 : 32

• 4 : 19

Drag the numbers to the correct spot to complete the table with equivalent ratios.

A car travels 120 miles in 2 hours.

h

i

j

g

f

60

180

2

100

5

50

150

240

4

1/2

The animal shelter has 6 dogs for every cat. Complete the double number line.

a

b

c

d

e

f

g

h

i

j

2

18

6

3

12

5

30

24

1

4

Han has a bag of marbles. There are 4 plain marbles for every 2 striped marbles. If Han has 12 marbles in his bag, how many of them are striped?

Mathematical Equivalence

ON

Answer explanation

Han has 4 plain marbles for every 2 striped marbles. If he has 12 marbles altogether, 8 of them are plain and 4 of them are striped.

A field trip requires 3 chaperones for every 7 kids. If there are a total of 50 people going on the field trip, how many of them are chaperones?

Mathematical Equivalence

ON

A recipe calls for 5 cups of flour for every 2 cups of sugar. If Andre wants to make 3 batches of the recipe, how many cups of flour will he need?

Mathematical Equivalence

ON

A pumpkin patch is selling 3 pumpkins for $15.75. What is the cost per pumpkin?

Mathematical Equivalence

ON

Sarah bought 4 concert tickets for $50. Lin bought 3 tickets for $42. Did they pay at the same rate?

• Yes, they paid at the same rate.

• No, they paid at different rates.