Пошаговое объяснение:
1) 8 4/9
2) 7 1/17
3) 6 36/55
Пошаговое объяснение:
1) 4 2/9+5 2/3-1 4/9 = 38/9 + 17/3 - 13/9 = 89/9 - 13/9 = 76/9 = 8 4/9
2) 9-4 2/17+2 3/17 = 8 17/17 - 4 2/17 + 2 3/17 = 4 15/17 + 2 3/17 = 6 18/17 = 7 1/17
3) 5 3/5-2 6/11+3 3/5 = 28/5 - 28/11 +18/5 = (308 - 140) : 55 + 18/5 =
168/55 + 18/5 = (168 + 198) : 55 = 366/55 = 6 36/55
