20 13/110
Пошаговое объяснение:
4 4/12 + 13 4/5 - 5 5/6 + 7 9/11 =
1) 4 4/12 + 13 4/5 = 4 20/60 + 13 48/60 = 17 68/60
2) 17 68/60 - 5 5/6 = 17 68/60 - 5 50/60 = 12 18/60
3) 12 18/60 + 7 9/11 = 12 198/660 + 7 540/660 = 20 13/110
2) 2 целых 259/230
20 13/110
Пошаговое объяснение:
4 4/12 + 13 4/5 - 5 5/6 + 7 9/11 =
1) 4 4/12 + 13 4/5 = 4 20/60 + 13 48/60 = 17 68/60
2) 17 68/60 - 5 5/6 = 17 68/60 - 5 50/60 = 12 18/60
3) 12 18/60 + 7 9/11 = 12 198/660 + 7 540/660 = 20 13/110