Вычислите -16 4/5+7 5/6
-16 4/5 + 7 5/6 = 7 5/6 - 16 4/5 = -9 + 5/6 - 4/5 = -9 - 5·5/6·5 - 4·6/5·6 = -9 + 2530 - 24/30 = -9 + 25 - 24/30 = -9 + 130 = -9·30/30 + 1/30 = -269/30 = -29 + 8·30/30 = -8 29/30