5. Вычислите: \(\frac{34}{74} - \frac{122}{55} - \frac{34}{74} \cdot \frac{48}{55}\)

1. \(\frac{34}{74} - \frac{34}{74} \cdot \frac{48}{55} = \frac{34}{74} \cdot (1 - \frac{48}{55}) = \frac{34}{74} \cdot (\frac{55 - 48}{55}) = \frac{34}{74} \cdot \frac{7}{55} = \frac{17}{37} \cdot \frac{7}{55} = \frac{119}{2035}\) 2. \(\frac{119}{2035} - \frac{122}{55} = \frac{119 - 122 \cdot 37}{2035} = \frac{119 - 4514}{2035} = \frac{-4395}{2035} = -\frac{879}{407}\) Ответ: \(-\frac{879}{407}\)