37/84 - 5/42 = 1/4
9/14 + 3/5 = 99/70 = 9/70
23/35 - 4/15 = 59/105
25/37 - 2/3 = 29/111
5/12 + 5/36 - 4/15 = 19/18
2/5 + 1/6 - 1/3 = 1/10
37/84 - 5/42 = 1/4
9/14 + 3/5 = 99/70 = 9/70
23/35 - 4/15 = 59/105
25/37 - 2/3 = 29/111
5/12 + 5/36 - 4/15 = 19/18
2/5 + 1/6 - 1/3 = 1/10