8/15 minus 7/20 is 11/60
8/9 minus 7/12 is 11/36
5/8 minus 6/11 is 7/88
5/8 - 7/20 = 25/40 - 14/40 = 11/40
It is: 2/7 minus 5/8 is = -19/56
8/15 minus 7/20 is 11/60
8/9 minus 7/12 is 11/36
5/8 minus 6/11 is 7/88
5/8-6/11=7/88
5/8-3/7=35/56-24/56=11/56
5/8 - 7/20 = 25/40 - 14/40 = 11/40
11/12 minus 3/8 is 13/24
22/24 - 15/24 = 7/24
9/10 minus 7/8 is 1/40
It is: 2/7 minus 5/8 is = -19/56
It is: 7/8 minus 1/8 = 6/8 => 3/4 in its simplest form
4/7 minus 2/8 = 9/28 in its simplest form