- $$|a| : |b| = |4\frac{2}{7}| : |-3\frac{3}{4}| = 4\frac{2}{7} : 3\frac{3}{4} = \frac{30}{7} : \frac{15}{4} = \frac{30}{7} \cdot \frac{4}{15} = \frac{2}{7} \cdot \frac{4}{1} = \frac{8}{7} = 1\frac{1}{7}$$
- $$|a| : |b| = |-8,64| : |0,08| = 8,64 : 0,08 = 864 : 8 = 108$$
Ответ: 1) $$1\frac{1}{7}$$; 2) 108