18/17-10/18=77/153
5 8/9-3=2 8/9
7 3/8-2 1/8=5 1/4
6-3/19=5 16/19
18-5 19/100=12 81/100
1-10/23=13/23
5/14-1/14=2/7
5-7/9=4 2/9
18/17-10/18=77/153
5 8/9-3=2 8/9
7 3/8-2 1/8=5 1/4
6-3/19=5 16/19
18-5 19/100=12 81/100
1-10/23=13/23
5/14-1/14=2/7
5-7/9=4 2/9