Lessons 7-1 through 7-3- Ratios

Sue sees 30 monkeys and 18 baby monkeys at the zoo. What is the ratio of monkeys to baby monkeys? Be sure to simplify.

• 3:2

• 3:5

• 5:3

• 5:8

What is the ratio of blue marbles to the total number of marbles? Be sure to simplify.

Color Number

Red 4

Blue 5

Purple 3

Green 4

Yellow 8

White 6

• 1:6

• 1:5

• 5:1

• 6:1

The number of shirts Karla owns is in the table below.

Karla’s Shirts

Color of Shirt-----------Number

red------------------ 1

blue------------------ 2

pink------------------- 3

white------------------ 2

What is the ratio of blue and red shirts to pink and white shirts? Be sure to simplify.

• 2:5

• 3:5

• 3:8

• 5:3

The tennis team won 8 matches and lost 4. What is the ratio of wins to the total number of matches played? Be sure to simplify.

• 1:3

• 1:2

• 2:3

• 2:1

Find the missing number.
3:5 = ____ : 15

• 3
• 6
• 9
• 15

Simplify the ratio.
18 : 27

• 2 : 3
• 6 : 9
• 36 : 54
• 1 : 2

There are 10 muffins on a tray. 4 are blueberry and the rest are chocolate chip. Write the ratio of blueberry muffins to chocolate chip muffins. Be sure to simplify.

• 4 : 6

• 4 : 10

• 6 : 4

• 2 : 3

There are 16 students in Mrs. Pavan's class and 18 students in Mrs. Griffin's class. What is the ratio of Mrs. Pavan's students to Mrs. Griffin's students. (Be sure to simplify.)

• 8 : 9

• 9 : 8

• 16 : 18

• 18 : 16

There are 20 packages of candy canes.  8 are red, 5 are green, and the rest are multicolored.  Find the ratio of the multicolored candy canes to the total candy canes. 

• 8 : 5
• 8 : 7
• 20 : 7
• 7 : 20

The ratio of the amount of money Diana has to the amount of money Sarah has is 4 : 7.  If Diana has $24, how much money does Sarah have? 

• $42
• $24
• $66
• $7