1. Приведите к наименьшему общему знаменателю: 1) \(\frac{1}{5}\) и \(\frac{1}{20}\); \(\frac{2}{7}\) и \(\frac{3}{14}\); \(\frac{5}{9}\) и \(\frac{11}{18}\); \(\frac{1}{15}\) и \(\frac{7}{180}\); \(\frac{23}{120}\) и \(\frac{1}{30}\) 2) \(\frac{11}{200}\) и \(\frac{2}{25}\); \(\frac{19}{120}\) и \(\frac{8}{15}\); \(\frac{7}{120}\) и \(\frac{7}{24}\); \(\frac{11}{35}\) и \(\frac{13}{105}\); \(\frac{5}{36}\) и \(\frac{13}{144}\) 3) \(\frac{3}{20}\), \(\frac{2}{15}\) и \(\frac{7}{180}\); \(\frac{3}{8}\), \(\frac{19}{120}\) и \(\frac{8}{15}\); \(\frac{11}{50}\), \(\frac{7}{10}\) и \(\frac{27}{100}\) 4) \(\frac{2}{3}\), \(\frac{5}{6}\) и \(\frac{11}{18}\); \(\frac{1}{36}\), \(\frac{1}{4}\), \(\frac{1}{6}\) и \(\frac{4}{15}\); \(\frac{7}{120}\), \(\frac{11}{14}\) и \(\frac{13}{140}\); \(\frac{3}{7}\) и \(\frac{2}{35}\) 5) 1\(\frac{5}{36}\), 2\(\frac{8}{9}\) и 5\(\frac{7}{144}\); 4\(\frac{17}{65}\), 3\(\frac{3}{10}\) и 5\(\frac{1}{130}\); \(\frac{17}{72}\), 2\(\frac{7}{18}\) и 1\(\frac{5}{6}\)