1 - 2/5 = 1 - 0.4 = 0.66 - 3/7 = 6 - 0.4286 = 5.57145 2/3 - 4 = 5.6667 - 4 = 1.66676 - 1 1/2 = 6 - 1.5 = 4.57 5/8 - 1/8 = 7.625 - 0.125 = 7.5
1 - 2/5 = 1 - 0.4 = 0.6
6 - 3/7 = 6 - 0.4286 = 5.5714
5 2/3 - 4 = 5.6667 - 4 = 1.6667
6 - 1 1/2 = 6 - 1.5 = 4.5
7 5/8 - 1/8 = 7.625 - 0.125 = 7.5