adding fractions with like denominators
1 1/10+ 7 1/10=
8 1/5
15/9 - 8/9=
7/9
4 3/4 + 6 2/4=
11 1/4
10/11 - 9/11=
1/11
2 5/6=
17/6
1 1/7 + 5 3/7=
6 4/7
3/2 - 1/2=
1
5 6/9 + 4 8/9=
10 5/9
8/9 - 5/9=
1/3
3 5/12=
41/12
1 11/12 + 8 5/15=
10 1/3
4/3 - 2/3=
2/3
1 4/7 + 9 3/7=
11
4/5 - 2/5=
2/5
2 3/5=
13/5
5 2/4 + 7 3/4=
13 1/4
15/9 - 8/9=
7/9
4 2/5 + 9 2/5=
13 4/5
6/9 - 4/9=
2/9
3 8/10=
19/5
3 7/12 + 2 10/12=
6 5/15
16/12 - 7/12=
3/4
5 1/2 + 6 1/2=
12
8/12 - 6/12=
1/6
1 1/2=
3/2