16. \(\left( \frac{27 \frac{5}{19} - 26}{\frac{4}{13}} \right) \left( \frac{3 \cdot 19}{59} - \frac{3}{118} \right) = \frac{\frac{3}{4} + x}{\frac{27}{33}} \) \(\frac{1}{13 \cdot 16} + \frac{1}{14 \cdot 17}\)