1 4/9 + 3 2/7 = 2 39/63 = 3 6/21 = 3 2/7
3 5/6 - 4/9 = 3 5/6 - 6/18 = 3 15/18 - 6/18 = 3 9/18 = 3 1/2
5 7/12 - 2 2/15 = 5 35/60 - 2 8/15 = 5 35/60 - 2 32/60 = 5 3/60 = 5 1/20
4 11/14 - 3 2/7 = 4 55/70 - 3 20/70 = 4 55/70 - 3 20/70 = 1 35/70 = 1 1/2
10 1/3 - 5 4/9 = 10 3/9 - 5 4/9 = 10 3/9 - 5 4/9 = 5 7/9
2 3/5 - 1 6/7 = 2 21/35 - 1 30/35 = 2 21/35 - 1 30/35 = 0 9/35 = 9/35
1 4/9 + 3 2/7 = 2 39/63 = 3 6/21 = 3 2/7
3 5/6 - 4/9 = 3 5/6 - 6/18 = 3 15/18 - 6/18 = 3 9/18 = 3 1/2
5 7/12 - 2 2/15 = 5 35/60 - 2 8/15 = 5 35/60 - 2 32/60 = 5 3/60 = 5 1/20
4 11/14 - 3 2/7 = 4 55/70 - 3 20/70 = 4 55/70 - 3 20/70 = 1 35/70 = 1 1/2
10 1/3 - 5 4/9 = 10 3/9 - 5 4/9 = 10 3/9 - 5 4/9 = 5 7/9
2 3/5 - 1 6/7 = 2 21/35 - 1 30/35 = 2 21/35 - 1 30/35 = 0 9/35 = 9/35