Question

(1 ціла 4/7 + 3цілі 2/3)*2/11
Помогите пожалуйста

Answer 1

$\displaystyle (1\frac{4}{7}+3\frac{2}{3} )*\frac{2}{11} = (\frac{11}{7}+\frac{11}{3} )*\frac{2}{11} = \frac{11*3+11*7}{7*3}*\frac{2}{11}=\frac{11*10}{21}*\frac{2}{11}=\frac{20}{21}$