ВЫПОЛНИТЕ УМНОЖЕНИЕ: 1)× 4)× 7)× 8 2)× 3)× 6)× 5)× 150 8)22× 46 9) 30x77 90

Решим примеры на умножение дробей:

1) \(\frac{2}{3} \times \frac{6}{7} = \frac{2 \times 6}{3 \times 7} = \frac{12}{21} = \frac{4}{7}\)

2) \(\frac{5}{6} \times \frac{4}{10} = \frac{5 \times 4}{6 \times 10} = \frac{20}{60} = \frac{1}{3}\)

3) \(\frac{11}{14} \times \frac{7}{22} = \frac{11 \times 7}{14 \times 22} = \frac{77}{308} = \frac{1}{4}\)

4) \(\frac{4}{15} \times \frac{5}{8} = \frac{4 \times 5}{15 \times 8} = \frac{20}{120} = \frac{1}{6}\)

5) \(\frac{3}{10} \times \frac{2}{6} = \frac{3 \times 2}{10 \times 6} = \frac{6}{60} = \frac{1}{10}\)

6) \(\frac{17}{33} \times \frac{11}{34} = \frac{17 \times 11}{33 \times 34} = \frac{187}{1122} = \frac{1}{6}\)

7) \(\frac{5}{7} \times \frac{77}{150} = \frac{5 \times 77}{7 \times 150} = \frac{385}{1050} = \frac{11}{30}\)

8) \(\frac{23}{45} \times \frac{9}{46} = \frac{23 \times 9}{45 \times 46} = \frac{207}{2070} = \frac{1}{10}\)

9) \(\frac{30}{66} \times \frac{77}{90} = \frac{30 \times 77}{66 \times 90} = \frac{2310}{5940} = \frac{35}{99}\)