59 - 131/3 = 177/3 - 40/3 = 137/3 or 452/3
59/90 - 1/69 = 59/90 - 15/90 = 44/90 = 22/45.
13/20 minus 3/5 is 1/20
1 minus 11/24 is 13/24
60 - 1 = 59
It is: 13/39 - 4/13 = 1/39
6 over 13
63/28 - 4/28 = 59/28
13 - 1/5 = 12 4/5
13 over 45
2/3 is.
It is: 13/39 - 4/13 = 1/39
5/8 - 1/12 = 13/24