e) $$3\frac{3}{4} - 0,125 = 3 + \frac{3}{4} - \frac{1}{8} = 3 + \frac{6}{8} - \frac{1}{8} = 3 + \frac{5}{8} = 3 + \frac{5 \cdot 125}{8 \cdot 125} = 3 + \frac{625}{1000} = 3 + 0,625 = 3,625$$
Ответ: 3,625