Ответ:
\(\frac{5}{16}-\frac{9}{8}=\frac{5}{16}-\frac{18}{16}=-\frac{13}{16}\).
\(\frac{5}{6}+\frac{3}{14}=\frac{35}{42}+\frac{9}{42}=\frac{44}{42}=\frac{22}{21}\).
\(-\frac{13}{16}-\frac{22}{21}=-\frac{273+352}{336}=-\frac{625}{336}\).
Ответ: \(-\frac{625}{336}\).
