Question

помогите даю 20 баллов

Answer 1

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