Adding w/ Like
Subtracting w/ Like
Adding w/ Unlike
Subtracting w/ Unlike
Mixed Review
100

2/5 + 1/5 = 

3/5 

100

7/10 - 3/10 = 

4/10 

100

1/2 + 2/3 = 

7/6

100

1/6 - 1/7 = 

1/42

100

5/15 + 2/15 = 

7/15

200

6/15 + 4/15 = 

10/15

200

9/14 - 8/14 = 

1/14

200

2/3 + 1/4 = 

11/12

200

3/4 - 1/2 = 

2/8 

200

8/10 - 2/10 = 

6/10

300

7/10 + 2/10 = 

9/10 

300

5/8 - 1/8 = 

4/8

300

1/1 + 3/5 = 

8/5

300

2/4 - 3/8 = 

4/32

300

10/30 + 5/30 = 

15/30

400

10/20 + 3/20 = 

13/20

400

15/15 - 3/15 = 

12/15

400

4/5 + 1/3 = 

17/15

400

1/2 - 3/7 = 

1/14

400

3/4 + 2/10 = 

38/40

500

7/18 + 6/18 = 

13/18

500

9/10 - 4/10 = 

5/10

500

1/4 + 2/6 = 

14/24

500

3/6 - 2/5 = 

3/30 

500

1/5 - 1/10 = 

5/50