Как решить пример (5,6 - 3 1/3) : (1,5 + 1 1/3)

5,6 = 56/10 = 28/5 3 1/3 = 10/3 1,5 = 15/10 = 3/2 1 1/3 = 4/3 (5,6 - 3 1/3) / (1,5 + 1 1/3) = = (28/5 - 10/3) / (3/2 + 4/3) = = ((84 - 50) / 15) / ((9 + 8) / 6) = = (34/15) / (17/6) = 34 * 6 = 15 * 17 = 4/5 = 0,8