Adding and subtracting fractions with like denominators

Adding

100

2/8 + 3/8

5/8

200

4/8 + 4/8

8/8 = 1

300

3/16 + 4/16

7/16

400

57/102 +36/102

93/102

500

137/194 + 32/194

169/194

Adding Part 2

100

6/9 + 5/9

11/9 = 1 2/9

200

5/12 + 8/12

13/12 = 1 1/12

300

7/10 + 4/10

11/10 = 1 1/10

400

15/20 + 8/20

23/20 = 1 3/20

500

5/9 + 4/9

9/9 = 1

Subtracting

100

8/9 - 3/9

5/9

200

7/9 - 4/9

3/9

300

35/67 -26/67

9/67

400

102/124 - 71/124

31/124

500

172/208 - 75/208

97/208

Subtracting Part 2

100

25/17 - 3/7

22/17 = 1 5/17

200

17/6 - 4/6

13/6 = 2 1/6

300

13/10 - 3/10

10/10 = 1

400

25/15 - 6/15

19/15 = 1 4/15

500

30/10 - 15/10

15/10 = 1 5/10 OR 1 1/2

Word Problems

100

Megan and Brooke had a pizza party. They had 4/8 pepperoni pizza left. They also had 5/8 plain pizza left. How much pizza do they have in all left over?

9/8 = 1 1/8

200

Laura is making a necklace. She has 3/8 feet of string. She only used 1/8 of string. How much string is left?

2/8

300

At a dance competition, group performances are 7/8 hours long. Sola performances are 3/8 hour long. How much longer are the group performances?

4/8 = 1/2 longer

400

Jess walks 3/10 of a mile to her friend's house. Jess and her friend walk 5/10 of a mile to school. Jess walks 8/10 of a mile home after school. How far does Jess walk in a day?

16/10 = 1 6/10

500

Chris read 3/12 of his book Saturday. He read 7/12 more the following day. How much does he still need to read to finish his book?

2/10 left to read.