Add and Subtract Fractions Review

Equivalent Fractions

100

Write two equivalent fractions for 2/3

WHAT IS 4/6 6/9 8/12 10/15

200

Write two equivalent fractions for 1/3.

2/6,  3/9,  4/12,  5/15

300

Write two equivalent fractions for 5/10.

1/2,  10/20,  15/30,  20/40

400

Write two equivalent fractions for 3/4.

6/8,  9/12,  15/20,  18/24

500

Write two equivalent fractions for 1.

1/1,  2/2,  3/3,  4/4

LCD

100

LCD of 7/12 and 3/8

24

200

LCD of 1/2 and 3/5

10

300

LCD of 5/6 and 2/4

12

400

LCD of 3/8 and 4/10

40

500

LCD of 2/6 and 3/7

42

Quick Fractions

100

Add 2/3 + 1/3

3/3=1

200

Add  4/5  + 2/ 5

6/5  =  1  1/5

300

Add 

3/8 + 2/8

5/8

400

Add     

5/16 + 9/16

14/16 = 7/8

500

Add    

7/20 + 8/20 

15/20 = 3/4

Addition

100

Add the fractions:   2/5 + 5/10

9/10    

200

Add the fractions:  1/4 + 3/16

7/16

300

Add the fractions:  2/3 + 5/7

29/21   or   1 8/21

400

Add the fractions:   1/3 + 1/2

5/6

500

Add the fractions:  1/5  +  7/9

44/45

Subtraction

100

Subtract the fractions:   3/5  -  3/10

3/10

200

Subtract the fractions:  4/7  -  5/14

3/14

300

Subtract the fractions: 8/10  -  5/10

3/10 

400

Subtract the fractions: 5/14 -  2/7

1/14

500

Subtract the fractions:   5/6 - 21/30

4/15

Mixed practice

100

Add:

3/10 + 4/10 = m

m = ?

m = 7/10

200

b = 9/16 - 1/2 

b = ?

b = 1/16

300

1/5 + 2/3 = x

x = ?

x = 13/15

400

give me two common denominators you could use to solve this problem: 

1/4 + 2/3

12, 24, 36, 48, etc...

500

List two common denominators you could use to solve this problem:    4/10 - 1/5

10, 15, 20, 25, 30, etc ....