Z - 1 целых 3/4 = 2 целых 7/12
Z - 1 3\4 = 2 7\12 z = 2 7\12 + 1 3\4 = 2 7\12 + 1 9\12= 3 16\12 = 4 4\12= 4 1\3 z = 4 1\3
4 1
4 1\3 - 1 3\4 = 4 4\12 - 1 9\12 = 3 16\12 - 1 9\12 = 2 7\12