2. Вычислите: \(8 \frac{9}{11} + \frac{4}{11}\)

Решение: \(8 \frac{9}{11} + \frac{4}{11} = 8 + \frac{9}{11} + \frac{4}{11} = 8 + \frac{9+4}{11} = 8 + \frac{13}{11} = 8 + 1 \frac{2}{11} = 9 \frac{2}{11}\) Ответ: \(9 \frac{2}{11}\)