1. Выполните действия: a) 1\(\frac{6}{19}\) + 2\(\frac{1}{38}\); б) 8\(\frac{3}{11}\) −5\(\frac{1}{22}\); в) 1\(\frac{6}{15}\) − \(\frac{22}{45}\); г) 2−1\(\frac{4}{7}\); д) 4\(\frac{3}{7}\) −(\(\frac{3}{11}\)+2\(\frac{1}{77}\)); е) 2\(\frac{3}{8}\) +1,25.

1. Выполните действия:

а) 1\(\frac{6}{19}\) + 2\(\frac{1}{38}\) = 1\(\frac{12}{38}\) + 2\(\frac{1}{38}\) = 3\(\frac{13}{38}\)

Ответ: 3\(\frac{13}{38}\)

б) 8\(\frac{3}{11}\) −5\(\frac{1}{22}\) = 8\(\frac{6}{22}\) −5\(\frac{1}{22}\) = 3\(\frac{5}{22}\)

Ответ: 3\(\frac{5}{22}\)

в) 1\(\frac{6}{15}\) − \(\frac{22}{45}\) = 1\(\frac{18}{45}\) − \(\frac{22}{45}\) = \(\frac{63}{45}\) - \(\frac{22}{45}\) = \(\frac{41}{45}\)

Ответ: \(\frac{41}{45}\)

г) 2−1\(\frac{4}{7}\) = 1\(\frac{7}{7}\)−1\(\frac{4}{7}\) = \(\frac{3}{7}\)

Ответ: \(\frac{3}{7}\)

д) 4\(\frac{3}{7}\) −(\(\frac{3}{11}\)+2\(\frac{1}{77}\)) = 4\(\frac{33}{77}\) - (\(\frac{21}{77}\) + 2\(\frac{1}{77}\)) = 4\(\frac{33}{77}\) - 2\(\frac{22}{77}\) = 2\(\frac{11}{77}\) = 2\(\frac{1}{7}\)

Ответ: 2\(\frac{1}{7}\)

e) 2\(\frac{3}{8}\) +1,25 = 2\(\frac{3}{8}\) + 1\(\frac{1}{4}\) = 2\(\frac{3}{8}\) + 1\(\frac{2}{8}\) = 3\(\frac{5}{8}\)

Ответ: 3\(\frac{5}{8}\)