Решение:

1. а) $$124 : 3 = 41\frac{1}{3}$$
2. б) $$6 : 20 = \frac{6}{20} = \frac{3}{10} = 0,3$$
3. в) $$12,3 : 3 = 4,1$$
4. г) $$9,1 : 0,07 = \frac{9,1}{0,07} = \frac{910}{7} = 130$$
5. д) $$0,25 : 0,55 = \frac{0,25}{0,55} = \frac{25}{55} = \frac{5}{11} \approx 0,45$$
6. е) $$8 \frac{2}{13} : 13 \frac{15}{13} = \frac{8 \cdot 13 + 2}{13} : \frac{13 \cdot 13 + 15}{13} = \frac{106}{13} : \frac{184}{13} = \frac{106}{13} \cdot \frac{13}{184} = \frac{106}{184} = \frac{53}{92} \approx 0,58$$
7. ж) $$6 \frac{5}{6} : 8,2 = \frac{6 \cdot 6 + 5}{6} : 8,2 = \frac{41}{6} : 8,2 = \frac{41}{6} : \frac{82}{10} = \frac{41}{6} \cdot \frac{10}{82} = \frac{41}{6} \cdot \frac{5}{41} = \frac{5}{6} \approx 0,83$$
8. з) $$1,35 : 5 \frac{5}{8} = 1,35 : \frac{5 \cdot 8 + 5}{8} = 1,35 : \frac{45}{8} = \frac{135}{100} : \frac{45}{8} = \frac{27}{20} : \frac{45}{8} = \frac{27}{20} \cdot \frac{8}{45} = \frac{3}{5} \cdot \frac{2}{5} = \frac{6}{25} = 0,24$$