Вычисли и запиши ответ 1 4 13 1. --- + --- = ; 2 3 6 5 7 11 2-+-1= 2. 3 4 6 7 8 3 3.----- ----- -= . 2 3 6 Ответ запиши в виде смешаной несократимой дроби.

Ответ: 1 \(\frac{1}{3}\); 1\(\frac{1}{12}\); -2\(\frac{1}{3}\)

1. \(\frac{1}{2} - \frac{4}{3} + \frac{13}{6} = \frac{3}{6} - \frac{8}{6} + \frac{13}{6} = \frac{3 - 8 + 13}{6} = \frac{8}{6} = \frac{4}{3} = 1\frac{1}{3}\)
2. \(\frac{5}{3} + \frac{7}{4} - \frac{11}{6} = \frac{20}{12} + \frac{21}{12} - \frac{22}{12} = \frac{20 + 21 - 22}{12} = \frac{19}{12} = 1\frac{7}{12}\)
3. \(\frac{7}{2} - (-\frac{8}{3}) - \frac{3}{6} = \frac{7}{2} + \frac{8}{3} - \frac{1}{2} = \frac{21}{6} + \frac{16}{6} - \frac{3}{6} = \frac{21 + 16 - 3}{6} = \frac{34}{6} = \frac{17}{3} = 5\frac{2}{3}\)

Ответ: 1 \(\frac{1}{3}\); 1\(\frac{1}{12}\); -2\(\frac{1}{3}\)