7/20 5/12 = 21/60 и 25/60
11/24 1/30 = 55/120 и 4/120
3/16 7/12 = 9/48 и 28/48
1/12 2/9 = 3/36 и 8/36
4/21 13/28 = 16/84 и 39/84
7/30 1/12 = 14/60 и 5/60
11/18 7/12 = 22/36 и 21/36
8/15 5/12 = 32/60 и 25/60
7/20 5/12 = 21/60 и 25/60
11/24 1/30 = 55/120 и 4/120
3/16 7/12 = 9/48 и 28/48
1/12 2/9 = 3/36 и 8/36
4/21 13/28 = 16/84 и 39/84
7/30 1/12 = 14/60 и 5/60
11/18 7/12 = 22/36 и 21/36
8/15 5/12 = 32/60 и 25/60