Question

СРОЧНО, ДАЮ 40 БАЛЛОВ

Answer 1

Ответ:

$\Big(\ \Big(4,625-0,7(2)\cdot \dfrac{9}{26}\Big):2,25+\Big(7\dfrac{1}{2}:3,75\Big):6,75\ \Big):1\dfrac{53}{68}=\\\\\\=\Big(\ \Big(\dfrac{37}{8}-\dfrac{65}{90}\cdot \dfrac{9}{26}\Big):\dfrac{9}{4}+\Big(\dfrac{15}{2}:\dfrac{15}{4}\Big):\dfrac{27}{4}\ \Big):\dfrac{121}{68}=\\\\\\=\Big(\ \Big(\dfrac{37}{8}-\dfrac{1}{4}\Big):\dfrac{9}{4}+\Big(\dfrac{15}{2}\cdot \dfrac{4}{15}\Big)\cdot \dfrac{4}{27}\ \Big)\cdot \dfrac{68}{121}=$

$=\Big(\ \dfrac{35}{8}\cdot \dfrac{4}{9}+\dfrac{8}{27}\ \Big)\cdot \dfrac{68}{121}=\dfrac{121}{54}\cdot \dfrac{68}{121}=\dfrac{68}{54}=\dfrac{34}{27}=1\dfrac{7}{27}$