Ratios Equivalent Ratios and Proportions

Solve the following proportion. 
12/15 = 90/ x 

• 112.5 

• 0.0088

• 1350

• 1125

Find two ratios that are equivalent to 2/3 ? 

• 6/9 and 5/12 

• 6/9 and 12/36 

• 6/9 and 8/12 

The ratio of students in Ms. Allenson's class is 8 boys : 16 girls. Which of the following could represent the class attendance?

• 1 boy to 4 girls 

• 63 boys to 40 girls 

• 32 boys to 64 girls 

• 48 boys to 80 girls 

Lihi bought 5 books for 55.40. Use a proportion to determine the cost of 15 books at the same rate. 

• 166.02

• 1.35

• 166.20

• 1.36

Which ratio is equivalent to 16:8 . 

• 1:2

• 4:3 

• 3:4 

• 2:1 

Which ratio is equivalent to 2:1

• 13:9 

• 24:12 

• 5 : 10 

• 9 :13 

Aidan has 60 yellow cards and 110 blue cards. Write a simplified ratio of yellow cards to blue cards. 

• 60: 55

• 30 to 55 

• 6 / 11 

• 30:55

Which ratio is NOT equivalent to 1:7? 

• 3:21

• 7:49

• 7:56

• 4:28

Is 2/1 and 20/10 proportional? 

• Yes 

• No 

Is 9/16 and 1/2 proportional? 

• Yes 

• No