16. \(\frac{17}{24}\cdot\frac{12}{34}=\)

Сократим: \(\frac{17}{34}=\frac{1}{2}\), \(\frac{12}{24}=\frac{1}{2}\).

\(\frac{17}{24}\cdot\frac{12}{34}=\frac{1}{2}\cdot\frac{1}{2}=\frac{1}{4}\).

Ответ: \(\frac{1}{4}\)