Verified answer

Ответ:    38.

Объяснение:

1)  3,4-1,275 =  2.125;

2)  2.125*16/17 = 2125/1000 * 16/17 = 17/8 * 16/17 = 16/8 = 2;

3)  1 7/85 + 6 2/17 = НОК(85;17) = 85 =>1 7/85 + 6 2*5/17*5 =

= 1 7/85 + 6 10/85 = 7 17/85 = 2.2;

4)  5/18 * 2.2 = 5/18 * 22/10 = 5/18 * 11/5 = 11/18;

5)  2 : 1/18 = 2*18 = 36;

6)  5.75+1/2 = 5.75 + 0.5 = 6.25;

7)  12.5 / 6.25 = 2;

8)  2+2 = 4;

9)  0.5*4 = 2;

10)  36+2=38.