B.2: 2 - 3/4, B.3: 2 - 1/3

**Решение:** **B.2:** \[2 - \frac{3}{4} = \frac{8}{4} - \frac{3}{4} = \frac{5}{4} = 1\frac{1}{4}\] **B.3:** \[2 - \frac{1}{3} = \frac{6}{3} - \frac{1}{3} = \frac{5}{3} = 1\frac{2}{3}\] **Ответ:** B.2: 1 1/4, B.3: 1 2/3