Verified answer

Ответ:

Пошаговое объяснение:

1) -9 + 2. 1/3 = -8. 3/3 + 2. 1/3 = -6. 2/3

2) 11 : (-6. 2/3) = 11 : (-20/3) = 11 * (-3/20) = -33/20 = -1. 13/20

3) 1/6 * 12,5 = 1/6 * 125/10 = 125/60 =

2. 5/60 = 2. 1/12

4) -1. 13/20 - 2. 1/12 + 1. 13/30 = -1. 39/60 - 2. 5/60 + 1. 26/60 = -3. 44/60 + 1. 26/60 = -2. 18/60 = -2. 3/10

5) -2. 3/10 : (-0,23) = -2,3 : (-0,23) = 10

6) 0,005 * 1050 = 5,25

7) 10 - 5,25 = 4,75