Расставим порядок действий:
- $$12,5 \cdot 4 = 50$$
- $$7\frac{7}{3} = \frac{28}{3}$$
- $$\frac{28}{3} : 11 = \frac{28}{3} \cdot \frac{1}{11} = \frac{28}{33}$$
- $$9\frac{1}{6} = \frac{55}{6}$$
- $$4,8 \cdot \frac{55}{6} = \frac{48}{10} \cdot \frac{55}{6} = \frac{8}{1} \cdot \frac{11}{6} = 44$$
- $$50 - \frac{28}{33} + 44 = 94 - \frac{28}{33} = \frac{94 \cdot 33 - 28}{33} = \frac{3102 - 28}{33} = \frac{3074}{33} = 93\frac{5}{33}.$$
Ответ: $$93\frac{5}{33}$$