Question

Помогите пожалуйста!!!

Answer 1

$\frac{23}{7} -(2.25-4\frac{5}{7} )+5.65$

$\frac{23}{7} -(2.25-\frac{33}{7} )+5.65$

$\frac{23}{7} +5.65$

$\frac{23}{7} +\frac{2.46428571*7}{7} +\frac{5.65*7}{7}$

$\frac{23+2.46428571*7+5.65*7}{7}$

$\frac{79.8}{7}$

$11.4$

Answer 2

$3 \times \frac{2}{7} - (2.25 - 4 \times \frac{5}{7} ) + 5.65 \\ \frac{6}{7} - ( \frac{9}{4} - \frac{20}{7} ) + \frac{113}{20} \\ \frac{6}{7} - ( - \frac{17}{28} ) + \frac{113}{20} \\ \frac{6}{7} + \frac{17}{28} + \frac{113}{20} \\ \frac{249}{35} = 7 \times \frac{4}{35}$