Question

Выполните сложение дробей.

Answer 1

$\displaystyle 1)6\frac{2}{15}+3\frac{9}{15}=(6+3)+(\frac{2}{15}+\frac{9}{15})=9+\frac{11}{15}=9\frac{11}{15}=\frac{146}{15}\\ \\2)4\frac{5}{9}+3=4+\frac{5}{9}+3=7+\frac{5}{9}=7\frac{5}{9}=\frac{68}{9}\\ \\3)2\frac{18}{25}+7\frac{8}{25}=(2+7)=(\frac{18}{25}+\frac{8}{25})=9+\frac{26}{25}=9+1\frac{1}{25}=9+1+\frac{1}{25}=10+\frac{1}{25}=\\\\10\frac{1}{25}=\frac{251}{25}=10,04$