Question

найдите значение выражения

5/4-2.1-1/5
0.86:43/20
9*(7/36+5/12-1/6)
1,23*45,7/12.3*0.457

Answer 1

5/4-2.1-1/5 = 1,25 - 2,1 - 0,2 = 1,05

0.86:43/20 = 0,86 :2,15 = 0,4

9*(7/36+5/12-1/6) = 9*(7/36 + 10/36 -6/36) = 9*11/36 = 11/4 = 2,75

1,23*45,7/12.3*0.457 = 100/10 = 10