Вычислите 11 3/11-(2 2/11+7 8/11)
11 3/11 - (2 2/11 + 7 8/11) = 1 4/11 1) 2 2/11 + 7 8/11 = 9 10/11 2) 11 3/11 - 9 10/11 = 10 14/11 - 9 10/11 = 1 4/11