Adding/Subtracting Fractions and Mixed Numbers Review

Common Denominator

100

Find common denominators for the following fractions:

1/4 and 2/7

28

200

Find a common denominator for the pair of fractions.

5/8 and 1/3

24

300

Find a common denominator for the pair of fractions.

11/15 and 1/3

15

400

Find a common denominator for the pair of fractions.

7/10 and 1/2

10

500

Find a common denominator for the pair of fractions.

3/8 and 2/5

40

Equivalent Fractions

100

Find equivalent fractions with like denominators for the pair of fractions:

200

Find equivalent fractions with like denominators for the pair of fractions:

2/3  and 4/7

14/21 and 12/21

300

Find equivalent fractions with like denominators for the pair of fractions:

4/8 & 1/6

12/24 & 4/24

400

Find equivalent fractions with like denominators for the pair of fractions:

5/9 and 1/3

5/9 and 3/9

500

Find equivalent fractions with like denominators for the pair of fractions:

6/7 and 3/8

48/56 and 21/56

Add/ Subtract Fractions

100

Find the sum.

2/3 + 1/5

13/15

200

Find the difference.

4/9 - 2/11

26/99

300

Find the difference:

3/4 - 1/5

11/20

400

At the beach, Kayla and her sister both built sandcastles and then measured their heights. Kayla's sandcastle was 2/3 of a foot tall and her sister's was 1/6 of a foot tall. How much taller was Kayla's sandcastle than her sister's?

3/6 of a foot

500

Olivia eats 1/2 of a pie and Chloe eats 1/6 of a pie. How much pie did they have leftover after they ate?

1/3 of a pie

(2/6 without simplifying)

Add Mixed Numbers

100

Find the difference: 

5 1/2 - 4 1/4

1 1/4

200

Find the sum:

7 4/5 + 2 2/25

9 22/25

300

Find the sum: 

9 2/5 + 6 7/10

16 1/10

400

Maxine wants to bake and needs to buy flour.  She will need 1 3/4 cups of flour to make a chocolate cake. She will also need 2 1/3 cups of flour for chocolate chip cookies. Finally, Maxine will need 1 2/3 cups of flour for brownies. Maxine wants to buy enough flour to bake with. How much flour does Maxine for baking?

6 9/12 cups of flour

500

Mrs. Vaughn paints her basement. She used 3 1/2 liters of green paint and 2 3/4 liters of gray paint. How much paint did she use in all?

6 1/4 liters of paint

Simplify

100

Simplify this mixed number:

7 5/4

8 1/4

200

Simplify this mixed number: 

8 8/6

9 2/6

300

Simplify this improper fraction: 

27/4

6 3/4

400

Simplify this mixed number:

19 11/2

24 1/2

500

Simplify this improper fraction:

19/3

6 1/3