1. Найдите значение выражения: a) \(\frac{7}{10} + \frac{4}{5}\) б) \(\frac{9}{20} - \frac{1}{5}\) в) \(\frac{3}{4} + \frac{1}{2}\) г) \(\frac{27}{50} - \frac{4}{25}\) д) \(\frac{3}{10} + \frac{4}{5}\) e) \(\frac{11}{20} - \frac{13}{50}\) ж) \(\frac{6}{8} + \frac{1}{4}\)

1. Найдите значение выражения:

1. \(\frac{7}{10} + \frac{4}{5} = \frac{7}{10} + \frac{8}{10} = \frac{15}{10} = 1\frac{5}{10} = 1\frac{1}{2}\)
2. \(\frac{9}{20} - \frac{1}{5} = \frac{9}{20} - \frac{4}{20} = \frac{5}{20} = \frac{1}{4}\)
3. \(\frac{3}{4} + \frac{1}{2} = \frac{3}{4} + \frac{2}{4} = \frac{5}{4} = 1\frac{1}{4}\)
4. \(\frac{27}{50} - \frac{4}{25} = \frac{27}{50} - \frac{8}{50} = \frac{19}{50}\)
5. \(\frac{3}{10} + \frac{4}{5} = \frac{3}{10} + \frac{8}{10} = \frac{11}{10} = 1\frac{1}{10}\)
6. \(\frac{11}{20} - \frac{13}{50} = \frac{55}{100} - \frac{26}{100} = \frac{29}{100}\)
7. \(\frac{6}{8} + \frac{1}{4} = \frac{3}{4} + \frac{1}{4} = \frac{4}{4} = 1\)