1. Вычислите: 1) \(\frac{4,8}{1,44}\); 3) \(\frac{0,05}{0,003}\); 5) \(\frac{\frac{7}{4}}{\frac{9}{7}}\); 2) \(\frac{5,25}{2,5}\); 4) \(\frac{\frac{6}{11}}{\frac{18}{55}}\); 6) \(\frac{\frac{7}{15}}{4}\).

1) \(\frac{4,8}{1,44} = \frac{480}{144} = \frac{48 \cdot 10}{48 \cdot 3} = \frac{10}{3} = 3\frac{1}{3}\)

Ответ: \(3\frac{1}{3}\)

2) \(\frac{5,25}{2,5} = \frac{525}{250} = \frac{25 \cdot 21}{25 \cdot 10} = \frac{21}{10} = 2,1\)

Ответ: 2,1

3) \(\frac{0,05}{0,003} = \frac{50}{3} = 16\frac{2}{3}\)

Ответ: \(16\frac{2}{3}\)

4) \(\frac{\frac{6}{11}}{\frac{18}{55}} = \frac{6}{11} : \frac{18}{55} = \frac{6}{11} \cdot \frac{55}{18} = \frac{6 \cdot 5 \cdot 11}{11 \cdot 6 \cdot 3} = \frac{5}{3} = 1\frac{2}{3}\)

Ответ: \(1\frac{2}{3}\)

5) \(\frac{\frac{7}{4}}{\frac{9}{7}} = \frac{7}{4} : \frac{9}{7} = \frac{7}{4} \cdot \frac{7}{9} = \frac{49}{36} = 1\frac{13}{36}\)

Ответ: \(1\frac{13}{36}\)

6) \(\frac{\frac{7}{15}}{4} = \frac{7}{15} : 4 = \frac{7}{15} \cdot \frac{1}{4} = \frac{7}{60}\)

Ответ: \(\frac{7}{60}\)