Adding Fractions
Subtracting Fractions
Mixed Practice
Finding the Least Common Denominator
Word Problems
(addition/subtraction)
100

What is 1/3+1/5?

5/15 + 3/15 = 8/15

100

What is 3/9-1/18?

6/18 - 1/18 = 5/18 

100

Estimate. 

2/3 + 7/8 = 

about 1 1/2 or 2

100

Find the least common denominator of the following fractions: 1/3 and 6/8.

24

100

Johnny and Elizabeth were playing a video game and trying to get all of the treasure. Johnny got 1/3 of the treasure. Elizabeth got 5/9 of the treasure. Together, Johnny and Elizabeth got what fraction of the treasure?

3/9 + 5/9 = 8/9

200

What is 3/4+3/8?

6/8 + 3/8 = 9/8 or 1 1/8 

200

What is 5/6-1/8?

20/24 - 3/24 = 17/24

200

Estimate. 

4/5 + 1 3/4 = 

about 3

200

Find the least common denominator of the following fractions: 5/6 and 1/2.

6

200

Heba ate 1/12 of a box of cereal. Now the box is 3/4 full. What fraction of a full box was there before Heba ate

1/12 + 9/12 = 10/12=5/6

300

What is 6/9+3/10?

60/90 + 27/90 = 87/90 = 29/30

300

What is 9/20-1/3?

27/60 - 20/60 = 7/60

300

Of the ice cream cones sold yesterday at Stanley's Ice Cream Shop, 1/6 were chocolate and another 2/3 were vanilla. What fraction of the ice cream cones sold were either chocolate or vanilla?

5/6

300

Find the least common denominator of the following fractions: 1/10 and 7/12.

60

300

Two cats, Fluffy and Fireball, met in the park. Fluffy's tail is 1/3 of a meter long. Fireball's tail is 1/4 of a meter long. How much longer is Fluffy's tail than Fireball's tail?

1/3 - 1/4 = 

4/12 - 3/12 = 1/12

400

What is 15/18+5/12?

30/36 + 15/36 = 45/36 = 15/12 = 5/4 = 1 1/4

400

What is 2/3-3/8?

16/24 - 9/24 = 7/24

400

What is 3/5 + 6/25?

15/25 + 6/25 = 21/25

400

Find the least common denominator of the following fractions: 1/9 and 5/12.

36

400

At the party, Aisha and her friends ate 2/3 pizza. After the party, there was 4/5 pizza left. How many pizzas were there at the start of the party?

2/3 + 4/5 =

10/15 + 12/15 = 22/15 = 1 7/15

500

What is 10/15+4/20?

40/60 + 12/60 = 52/60 = 26/30 = 13/15

500

What is 7/9-3/8?

56/63 - 27/72 = 29/72

500

What is 5/8 - 1/12? 

15/24 - 2/24 = 13/24

500

Find the least common denominator of the following fractions: 3/8 and 7/10.

40

500

In making macaroni and cheese, Jenny used 3/4 of a cup of cheddar and 1/2 of a cup of parmesan. How much cheese did Jenny use in all?

3/4 + 2/4  = 5/4 or 1 1/4

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