Задание 2, 1) (2 3/17 - 1 34/34) * 17

\( \left( 2 \frac{3}{17} - 1 \frac{34}{34} \right) \cdot 17 = \left( \frac{37}{17} - \frac{68}{34} \right) \cdot 17 = 17 \).