Выполните вычитания 4 5/9-8/9, 3 1/12-1 5/12, 6 3/7-5 5/7 образец9 2/7-3 5/7=6 2/7-5/7=5+9/7-5/7=5 4/7

4 5/9-8/9 = 4*9+5/9 - 8/9 = 41/9 - 8/9 = 33/9 = 3 6/9 = 3 2/3  3 1/12-1 5/12 =37/12 - 17/12 = 20\12 = 1 8/12 = 1 2/3 6 3/7-5 5/7 =45/7 - 40/7 = 5/7