Unlike Denominators Easy
1/4 + 2/6
7/12
3/5 - 1/7 =
16/35
8/9 - 3/10 =
53/90
5/6 - 1/4 =
7/12
2/4 + 3/9 =
30/36
12/20 + 10/15 =
76/60
2/5 - 1/6 =
7/30
5/10 - 1/3 =
5/30
8/20 - 3/15 =
12/60
4/5- 3/8 =
17/40
10/100 + 30/300
60/300
20/40 + 30/60 =
1
13/20 + 7/30 =
53/60