227. Сократите (буквами обозначены натуральные числа): 1) \frac{6a}{18a}; 2) \frac{32b}{60}; 3) \frac{96c}{72c}; 4) \frac{45}{9d}; 5) \frac{39mn}{91mn}; 6) \frac{95ab}{38bc}

Ответ:

1) \(\frac{6a}{18a} = \frac{6}{18} = \frac{1}{3}\)

2) \(\frac{32b}{60} = \frac{8b}{15}\)

3) \(\frac{96c}{72c} = \frac{96}{72} = \frac{4 \cdot 24}{3 \cdot 24} = \frac{4}{3}\)

4) \(\frac{45}{9d} = \frac{5}{d}\)

5) \(\frac{39mn}{91mn} = \frac{39}{91} = \frac{3 \cdot 13}{7 \cdot 13} = \frac{3}{7}\)

6) \(\frac{95ab}{38bc} = \frac{5a}{2c}\)

Ответ: 1) \(\frac{1}{3}\); 2) \(\frac{8b}{15}\); 3) \(\frac{4}{3}\); 4) \(\frac{5}{d}\); 5) \(\frac{3}{7}\); 6) \(\frac{5a}{2c}\)