1 17/20 - 1/20 = 1 16/20 = 1 4/51 4/9 - 2/9 = 1 2/9 - 2/9 = 1 2/9 - 2/9 = 16 1/3 - 7/12 = 6 - 1/3 - 7/12 = 6 - 4/12 - 7/12 = 5 - 7/12 = 4 5/123 7/10 - 1/2 = 3 - 7/10 - 5/10 = 2 3/106 2/3 - 2 2/25 = 6 - 2 - 2/3 + 2/25 = 4 8/159 1/2 - 1 1/2 = 83 1/3 - 5/6 = 3 - 1/3 - 5/6 = 2 2/3 - 5/6 = 2 4/3 - 5/6 = 26 1/2 - 1 5/12 = 6 - 1/2 - 5/12 = 5 6/12 - 5/12 = 5 1/23 9/10 - 2 1/5 = 3 - 9/10 - 11/5 = 3 - 9/10 - 5/10 = 2 - 14/10 = 1 4/10 = 1 2/52 1/3 - 1 1/18 = 2 - 1/3 - 1/18 = 1 2/3 - 1/18 = 1 12/18 - 1/18 = 1 11/183 7/9 - 2 1/3 = 3 - 7/9 - 8/3 = 2 1/9 - 8/3 = 2 - 3/9 - 8/3 = 1 6/9 - 8/3 = 1 - 8/27 = 27/27 - 8/27 = 19/278 1/6 - 3 1/8 = 8 - 1/6 - 3 - 1/8 = 7 5/6 - 25/24 = 7 - 1/6 - 1/24 = 6 5/6 - 1/24 = 6 20/24 - 1/24 = 6 19/242 1/2 - 1 6/13 = 2 - 1/2 - 6/13 = 1 4/2 - 6/13 = 1 8/2 - 6/13 = 1 26/13 - 6/13 = 1 20/137 1/3 - 3 2/9 = 7 - 1/3 - 3 - 2/9 = 6 2/3 - 29/9 = 6 - 2/3 - 3 1/9 = 6 - 3 1/9 = 6 - 4/9 = 5 5/92 1/2 - 1 4/15 = 2 - 1/2 - 4/15 = 1 1/2 - 4/15 = 1 7/6 - 4/15 = 1 35/30 - 8/30 = 1 27/30 = 1 9/10