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

1) \(\frac{4,8}{1,44}\) = \(\frac{480}{144}\) = \(\frac{40}{12}\) = \(\frac{10}{3}\) = 3\(\frac{1}{3}\)

Ответ: 3\(\frac{1}{3}\)

2) \(\frac{5,25}{2,5}\) = \(\frac{525}{250}\) = \(\frac{105}{50}\) = \(\frac{21}{10}\) = 2,1

Ответ: 2,1

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

Ответ: 16\(\frac{2}{3}\)

4) \(\frac{11}{18}: \frac{6}{55}\) = \(\frac{11}{18} \cdot \frac{55}{6}\) = \(\frac{605}{108}\) = 5\(\frac{65}{108}\)

Ответ: 5\(\frac{65}{108}\)

5) \(\frac{7}{4}: \frac{9}{4}\) = \(\frac{7}{4} \cdot \frac{4}{9}\) = \(\frac{7}{9}\)

Ответ: \(\frac{7}{9}\)

6) \(\frac{7}{15} \cdot \frac{15}{4}\) = \(\frac{7}{4}\) = 1\(\frac{3}{4}\)

Ответ: 1\(\frac{3}{4}\)