Образец: №2 5 4.5 20 4.===2 ラ Решите: 1. 4. 23 2. 3.4 4 3. 12.3 13 4. 13. 2 5. 4.10

Решим примеры:

1. $$1.\ 4 \cdot \frac{2}{3} = \frac{4 \cdot 2}{3} = \frac{8}{3} = 2\frac{2}{3}$$
2. $$2.\ 3 \cdot \frac{4}{4} = \frac{3 \cdot 4}{4} = \frac{3}{1} = 3$$
3. $$3.\ 12 \cdot \frac{3}{13} = \frac{12 \cdot 3}{13} = \frac{36}{13} = 2\frac{10}{13}$$
4. $$4.\ 13 \cdot \frac{1}{2} = \frac{13 \cdot 1}{2} = \frac{13}{2} = 6\frac{1}{2}$$
5. $$5.\ 4 \cdot \frac{10}{11} = \frac{4 \cdot 10}{11} = \frac{40}{11} = 3\frac{7}{11}$$

Ответ:

1. $$2\frac{2}{3}$$
2. $$3$$
3. $$2\frac{10}{13}$$
4. $$6\frac{1}{2}$$
5. $$3\frac{7}{11}$$