Question

(-4/1+5/1)-(4,7-2,8)-1.75

Answer 1

$(-\frac{4}{1} + \frac{5}{1} ) - (4,7 - 2,8) - 1,75 = 1 - 1,9 - 1,75 = -2,65$

Answer 2

…=1-1,9-1,75=-2,65
Вот и всё