выполните действие 1 5/7-4 3/13:1 19/26

Question

выполните действие 1 5/7-4 3/13:1 19/26

Answer 1

1 5/7-4 3/13:1 19/26 = -46/63

1) 4 3/13 : 1 19/26 = 55/13 : 45/26 = 55/13 * 26/45 = 22/9 = 2 4/9

2) 1 5/7 - 2 4/9 = 1 45/63 - 2 28/63 = -46/63