Вычислите дробь 3/4-(1 1/3-1 1/6)
1) 1 1/3 - 1 1/6 = 4/3 - 7/6 =(4 × 2 - 7 × 1)/6 = 8/6 - 7/6 = 1/6 2)3/4 - 1/6 = (3 × 3 - 1 × 2)/12 = 9/12 - 2/12 = 7/12