BIG IDEA 2Chapter 7 Review

Factors, Multiples, and Fractions

Alyssa spends $42 on some flip flops. Each pair of flip flops costs the same whole-dollar amount. How many pairs of shoes could she have bought? (Hint: There are 7 possible answers!)

1

Factor 42

1 x 42

2 x 21

3 x 14

6 X 7

Alyssa could have bought 2, 3, 6, 7, 14, 21, or 42 pairs of flip flops.

Alyssa spends $42 on some flip flops. Each pair of flip flops costs the same whole-dollar amount. How many pairs of shoes could she have bought? (Hint: There are 7 possible answers.)

1

Maurice works at the recycling center every 2 days in June. Sam works at the same center every 4 days. If they both work on June 1st, what are the next two days that the boys will work the same day?

2

Maurice works at the recycling center every 2 days in June. Sam works at the same center every 4 days. If they both work on June 1st, what are the next two days that the boys will work the same day?

2

Maurice and Sam will work together on the 5th and the 9th

Maurice 1 3 5 7 9 11 13

Sam 1 5 9 13 17 21 25

Six of 24 students in Jordan’s class have red book bags. In simplest form, what fraction of students own red book bags?

3

Six of 24 students in Jordan’s class have red book bags. In simplest form, what fraction of students own red book bags?

6 ÷ 6 = 1 24 ÷ 6 = 4

6/24 = 1/43

Elle served 3 ⅞ pizzas at her Super Bowl party. About how many pizzas did Elle serve?

A. 3 B. 3 ½C. 4 D. 4 ¼

4

4

Elle served 3 ⅞ pizzas at her Super Bowl party. About how many pizzas did Elle serve?

C. 4 pizzas

Sophia wants to order 6/7, 3/4, 2/3, and 4/10 from least to greatest. What order should she put the fractions in?

5

Sophia wants to order 6/7, 3/4, 2/3, and 4/10 from least to greatest. What order should she put the fractions in?

4/10 2/3 3/4 6/7

5

David ran 3 ¼ miles along a marathon route. What fraction is equal to 3 ¼?

A. 3 2/4 B. 3 2/8

C. 3 3/8 D. 3 4/4

6

David ran 3 ¼ miles along a marathon route. What fraction is equal to 3 ¼? 8 8

1 ?

4 8

1 x 8 = 8 and 4 x ? = 8

B. 3 ¼ = 3 2/8

6

Mariah skip counted by multiples of 8. Which numbers are missing from her list?

8, __, 24, 32, __, 48, __, 64

7

Mariah skip counted by multiples of 8. Which numbers are missing from her list?

8, 16, 24, 32, 40, 48, 56, 64.

7

Timothy wants to find the common denominator of 2/3 and 3/5. What is the common denominator?

8

Timothy wants to find the common denominator of 2/3 and 3/5. What is the common denominator?

To find the common denominator, find the LCM. Multiples of 3: 3, 6, 9, 12,15Multiples of 5: 5, 10, 15

The common denominator is 15.8

Chloe’s Used Book Store will trade 3 books for every 6 books that a customer turns in. How many books will the store trade for 24 books from a customer?

9

Chloe’s Used Book Store will trade 3 books for every 6 books that a customer turns in. How many books will the store trade for 24 books from a customer?

9

Books Turned In Books Traded

6 3

12 6

18 9

24 12

Laylah bakes 56 cookies. Of the 56 cookies, 7 crumble. What fraction represents, in lowest terms (simplified), the crumbled cookies?

10

Laylah bakes 56 cookies. Of the 56 cookies, 7 crumble. What fraction represents, in lowest terms (simplified), the crumbled cookies?

7/56 = 1/8

10

Cameron made a list of factors of 18 and 28 so he could find what factors the numbers have in common. What are the common factors of 18 and 28?

11

Cameron made a list of factors of 18 and 28 so he could find what factors the numbers have in common. What are the common factors of 18 and 28?

18 28

1 x 18 1 x 28

2 x 9 2 x 14

3 x 6 4 x 8

1 and 2 are the common factors.11

Gabe’s team has a swim meet every 4th day in December, starting on December 3rd. How many days will the team have a swim meet in December? There are 31 days in December.

12

Gabe’s team has a swim meet every 4th day in December, starting on December 3rd. How many days will the team have a swim meet in December? There are 31 days in December.

1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 31

The team will meet on 8 days.

12

The Rivera farm is divided into 9 sections. The house, barn, and corral are in 3 of the sections. The remaining sections are flower and vegetable gardens. What fraction is equal to the part of the farm that is flower and vegetable gardens?

13

The Rivera farm is divided into 9 sections. The house, barn, and corral are in 3 of the sections. The remaining sections are flower and vegetable gardens. What fraction is equal to the part of the farm that is flower and vegetable gardens?

3/9 of the sections are house, barn, and corral, leaving the remaining 6 sections gardens. 6/9 are gardens. 6/9 = 2/3

13

Eva has 28 stamps in her collection. Twelve of the stamps have the image of a famous person on them. Name two fractions equivalent to the part of Eva’s collection that are famous people stamps?

14

Eva has 28 stamps in her collection. Twelve of the stamps have the image of a famous person on them. Name two fractions equivalent to the part of Eva’s collection that are famous people stamps?

12/28 =

6/14 = 3/7

14

Emily bikes 2 ¼ hours on Saturday and 1 ⅜ hours on Sunday. What is the common denominator for 2 ¼ and 1 ⅜?

14

Emily bikes 2 ¼ hours on Saturday and 1 ⅜ hours on Sunday. What is the common denominator for 2 ¼ and 1 ⅜?

Multiples of 4: 4 8 12Multiples of 8: 8 16 24

14

The common denominator is 8

Good luck on your test!