1 7/30
Пошаговое объяснение:
5/(3 12/17+2 5/17)+(4,2-2 3/5 )/4 = 5/6 + (4 1/5 - 2 3/5)/4 =
5/6 + (21/5 - 13/5)/4 = 5/6 + 8/5:4 = 5/6 + 2/5 = 37/30 = 1 7/30
1 7/30
Пошаговое объяснение:
5/(3 12/17+2 5/17)+(4,2-2 3/5 )/4 = 5/6 + (4 1/5 - 2 3/5)/4 =
5/6 + (21/5 - 13/5)/4 = 5/6 + 8/5:4 = 5/6 + 2/5 = 37/30 = 1 7/30