Вычислите: -3 5/21÷1 22/63+1 3/35÷1 1/56

Question

Вычислите:
-3 5/21÷1 22/63+1 3/35÷1 1/56

Answer 1

-3 5/21 : 1 22/63 + 1 3/35 : 1 1/56 =
-68/21 : 85/63 + 38/35 : 57/56 =
-12/5 + 16/15 =
-36/15 + 16/15 =
-20/15 = -1 5/15 = -1 1/3