Adding/Subtracting w Common Denominator
4/6+1/6
5/6
2/5 + 1/3
11/15
1/2 - 1/6
2/6
1 5/6 + 1 1/3
3 1/6
2 1/2 - 1 3/4
3/4
4/9+3/9
7/9
1/2 + 1/4
3/4
3/4 - 1/3
5/12
2 1/4 + 1 1/4
3 2/4
7 3/4 - 5 2/4
2 1/4
5/8 - 2/8
3/8
1/2 + 7/12
13/12 OR 1 1/12
5/7 -2/3
1/21
4 1/4 + 3 2/4
7 3/4
6 2/4 - 1 1/4
5 1/4
13/21- 6/21
7/21
2/8 + 4/24
10/24
7/9-2/3
3/27
5 4/5 + 6 2/3
12 7/15
7 9/16 - 3 7/8
3 11/16
14/20 - 7/20
7/20
4/6 + 3/5
38/30 OR 1 8/30
7/9-2/5
17/45
8/10 + 4 2/5
5 2/10
7 1/8 - 4 1/2
3 5/8