55.3
1 - 1/3 = 3/3 - 1/3 = 2/3
7 - 1/8 = 6 8/8 - 1/8 = 6 7/8
1 + 1/3 = 1 1/3
3 - 3/4 = 2 4/4 - 3/4 = 2 1/4
4 + 5/6 = 4 5/6
4 + 2/3 + 1/3 = 4/3/3 = 5
2 1/3 - 1/3 - 1/3 = 2 - 1/3 = 1 3/3 - 1/3 = 1 2/3
55.4
7 2/5 - 1/5 = 7 1/5
5 2/3 + 2/3 = 5 4/3 = 6 1/3
1/6 + 7 5/6 = 7 6/6 = 8
6 2/5 + 4/5 = 6 6/5 = 7 1/5
8 5/9 + 7/9 = 8 12/9 = 9 3/9 = 9 1/3
9 11/12 - 0 = 9 11/12
1 5/9 - 2/9 = 1 3/9 = 1 1/3
7 4/9 + 8/9 = 7 12/9 = 8 3/9 = 8 1/3
0 + 3 6/7 = 3 6/7
9/11 + 9 5/11 = 9 14/11 = 10 3/11
8 9/10 - 7/10 = 8 2/10 = 8 1/5
6 9/20 - 1/20 = 6 8/20 = 6 2/5