Adding and Subtracting Fractions Review

Adding Fractions

100

1/4+1/4

2/4=1/2

200

1/3+1/6

=3/6=1/2

300

5/12+1/4

8/12=2/3

400

7/5+3/5

10/5=2

500

3/8+3/7

45/56

Subtracting Fractions

100

3/4−1/4

2/4=1/2

200

5/6-1/3

3/6=1/2

300

7/10-3/10

4/10=2/5

400

4/3-5/7

13/21

500

1-5/6

1/6

Mixed numbers

100

1 1/2+1/2

2

200

3 1/4-1 1/4

2

300

1 3/8-1/2

7/8

400

1 1/5-1/3

13/15

500

4 1/2+2 1/4

6 3/4

Word Problems

100

If you have 2/3 of a cake and eat 1/3, how much cake do you have left?

1/3

200

Marie has 3 1/2 yards of fabric. She uses 1 1/2 yards. How much fabric does she have left?

2 yards

300

A recipe requires 3/4 cup of sugar for one serving. You want to double it. How much sugar do you need?

3/2 or 1 1/2

400

You read 1 2/5 hours on Monday and 2 1/5 hours on Tuesday. How many hours did you read in total?

3 3/5 hours

500

A gardener planted 2 1/2 rows of flowers and then planted 1 3/4 more rows. How many rows are there now?

4 1/4 rows

Challenge Round!

100

1/2+1/3

5/6

200

2 1/3-1 2/3

2/3

300

5-2 1/5

2 4/5

400

3 1/2-1 3/4

1 3/4

500

14 1/5- 8 2/5

5 4/5