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Add Like Denominators
Subtract Like Denominators
Add Unlike Denominators
Subtract Unlike Denominators
Add or Subtract Mixed Numbers
100
1/3 + 1/3
What is 2/3
100
4/5 - 2/5
What is 2/5
100
1/3 + 1/9
What is 4/9
100

3/4 - 1/2

What is 1/4

100

7 1/12 + 3 1/3

What is 10 5/12

200
1/16 +2/16
What is 3/16
200
4 2/3 - 1 1/3
What is 3 1/3
200
7/10 + 1/8
What is 33/40
200

 3/4 - 5/6

What is -1/12

200

2 1/6 + 2 3/8

What is 4 13/24

300
15/26 + 11/26
What is 1
300

2 1/5 - 1 4/5

What is 2/5

300
2/7 + 2/5
What is 24/35
300

2/3 - 8/9

What is -2/9

300

3 9/10 - 1 2/5

What is 2 1/2

400
2 1/2 + 3 1/2
What is 6
400

37 7/18 - 24 13/18

What is 12 2/3

400
1 1/2 + 3 1/4
What is 4 3/4
400

9/10 - 2/10 - 1/5

What is 1/2

400
32 5/7 - 13 2/5
What is 19 11/35
500
11/24 + 13/24 + 15/24
What is 1 5/8
500

8 - 6/7

What is 7 1/7

500

2/9 + 1/6 + 1/3

What is 13/18

500

57/100 - 17/100 - 19/100

What is 21/100

500
28 11/12 - 8 5/9
What is 20 13/36