\[\left( \frac{14^{\backslash 10}}{11} + \frac{17^{\backslash 11}}{10} \right) \cdot \frac{11}{15} =\]
\[= \frac{140 + 187}{110} \cdot \frac{11}{15} = \frac{327}{10 \cdot 15} =\]
\[= \frac{109}{50} = \frac{218}{100} = 2,18.\]