Ответ:
1) \(\frac{29}{30}-\frac{9}{25}=\frac{145}{150}-\frac{54}{150}=\frac{91}{150}\).
\(\frac{91}{150}\cdot\frac{9}{13}=\frac{7\cdot3}{50}=\frac{21}{50}\).
2) \(\frac{1}{30}+\frac{4}{15}=\frac{1}{30}+\frac{8}{30}=\frac{3}{10}\).
\(\frac{3}{10}\cdot\frac{29}{12}=\frac{29}{40}\).
Ответ: \(\frac{21}{50}\) и \(\frac{29}{40}\).
