Ответ:
\(\frac{4}{7}+\frac{6}{10}=\frac{4}{7}+\frac{3}{5}=\frac{41}{35}\).
\(\frac{7}{30}\cdot\frac{41}{35}=\frac{41}{150}\).
Ответ: \(\frac{41}{150}\).
\(\frac{4}{7}+\frac{6}{10}=\frac{4}{7}+\frac{3}{5}=\frac{41}{35}\).
\(\frac{7}{30}\cdot\frac{41}{35}=\frac{41}{150}\).
Ответ: \(\frac{41}{150}\).