Question

Помогите плизз мне очень срочно надо

Answer 1

5/8-8/3=15/24-64/24=-49/24
2 1/3:(-49/24)=7/3*(-24/49)=-8/7
2*1 3/7=2*10/7=20/7
-8/7-20/7=-28/7=-4

Answer 2

$2\frac{1}{3}:(\frac{5}{8}-\frac{8}{3})-2*1\frac{3}{7}$
$\frac{7}{3}:(\frac{15}{24}-\frac{64}{24})-2\frac{6}{7}$
$\frac{7}{3}:(-\frac{49}{24})-\frac{20}{7}$
$\frac{7}{3}*(-\frac{24}{49})-\frac{20}{7}$
$-\frac{8}{7}-\frac{20}{7}=-\frac{28}{7}=-4$