Ответ:
- \(9\frac16:2,75-0,8=\frac{55}{6}:\frac{11}{4}-\frac45=\frac{10}{3}-\frac45=\frac{46}{15}\).
- \(\frac{46}{15}\cdot0,6+1\frac{7}{25}=\frac{46}{15}\cdot\frac35+\frac{32}{25}=\frac{78}{25}\).
- Числитель: \(1,2+\frac{78}{25}\cdot1,75=\frac65+\frac{78}{25}\cdot\frac74=\frac{333}{50}\).
- Знаменатель: \(3\frac13-0,4\cdot3\frac23=\frac{10}{3}-\frac25\cdot\frac{11}{3}=\frac{28}{15}\).
- \(\frac{333}{50}:\frac{28}{15}+1\frac12=\frac{999}{280}+\frac32=\frac{1419}{280}=5\frac{19}{280}\).
Ответ: \(\frac{1419}{280}=5\frac{19}{280}\).
