3 2/7 + 5 3/14

\(3\frac{2}{7}=\frac{46}{14}\), \(5\frac{3}{14}=\frac{73}{14}\).

\(\frac{46}{14}+\frac{73}{14}=\frac{119}{14}=\frac{17}{2}=8\frac{1}{2}\).

Ответ: \(8\frac{1}{2}\)