Question

помогите даю 20 баллов

Answer 1

$(\frac{10}{3}+\frac{31}{6})*\frac{2}{5}-\frac{11}{4}:(\frac{3}{2}-\frac{2}{5})=(\frac{20}{6}+\frac{31}{6})*\frac{2}{5}-\frac{11}{4}:(\frac{15}{10}-\frac{4}{10})=\frac{51}{6}*\frac{2}{5}-\frac{11}{4}*\frac{10}{11}=\frac{51}{15}-\frac{5}{2}=\frac{102}{30}-\frac{75}{30}=\frac{27}{30}=\frac{9}{10}$