662. Запишите смешанные числа в виде неправильных дробей. 1 25 1 49 Образец. 12=2, 24=2 2 2 1 ? 1 ? 1 ? 2 ? 4=, 9=, 7=, 4=, 8=, 2 2 3 3 3 3 3 3 ? ? ? 5 1 5 ? 20=, 10=, 8=, 16=, 13=, 20= 3 3 20 20 10 10 15 15 10 10

Ответ:

1. \[4 \frac{1}{2} = \frac{4 \cdot 2 + 1}{2} = \frac{8 + 1}{2} = \frac{9}{2}\]

2. \[9 \frac{1}{2} = \frac{9 \cdot 2 + 1}{2} = \frac{18 + 1}{2} = \frac{19}{2}\]

3. \[7 \frac{1}{3} = \frac{7 \cdot 3 + 1}{3} = \frac{21 + 1}{3} = \frac{22}{3}\]

4. \[4 \frac{2}{3} = \frac{4 \cdot 3 + 2}{3} = \frac{12 + 2}{3} = \frac{14}{3}\]

5. \[8 \frac{2}{3} = \frac{8 \cdot 3 + 2}{3} = \frac{24 + 2}{3} = \frac{26}{3}\]

6. \[10 \frac{1}{3} = \frac{10 \cdot 3 + 1}{3} = \frac{30 + 1}{3} = \frac{31}{3}\]

7. \[8 \frac{7}{20} = \frac{8 \cdot 20 + 7}{20} = \frac{160 + 7}{20} = \frac{167}{20}\]

8. \[16 \frac{5}{10} = \frac{16 \cdot 10 + 5}{10} = \frac{160 + 5}{10} = \frac{165}{10}\]

9. \[13 \frac{1}{15} = \frac{13 \cdot 15 + 1}{15} = \frac{195 + 1}{15} = \frac{196}{15}\]

10. \[20 \frac{5}{10} = \frac{20 \cdot 10 + 5}{10} = \frac{200 + 5}{10} = \frac{205}{10}\]

Ответ: \[4 \frac{1}{2} = \frac{9}{2}, 9 \frac{1}{2} = \frac{19}{2}, 7 \frac{1}{3} = \frac{22}{3}, 4 \frac{2}{3} = \frac{14}{3}, 8 \frac{2}{3} = \frac{26}{3}, 10 \frac{1}{3} = \frac{31}{3}, 8 \frac{7}{20} = \frac{167}{20}, 16 \frac{5}{10} = \frac{165}{10}, 13 \frac{1}{15} = \frac{196}{15}, 20 \frac{5}{10} = \frac{205}{10}\]