Ответ:

  1. \(10+2\frac{1}{6}=12\frac{1}{6}\).
  2. \(\frac{5}{11}+4\frac{2}{11}=4\frac{7}{11}\).
  3. \(6\frac{2}{9}+1\frac{1}{9}=7\frac{3}{9}=7\frac{1}{3}\).
  4. \(\frac{3}{5}+5\frac{2}{5}=6\).
  5. \(3\frac{7}{13}+3\frac{9}{13}=6\frac{16}{13}=7\frac{3}{13}\).
  6. \(4\frac{17}{24}+2\frac{11}{24}=6\frac{28}{24}=7\frac{1}{6}\).
  7. \(3\frac{7}{8}-3=\frac{7}{8}\).
  8. \(8\frac{3}{10}-\frac{3}{10}=8\).
  9. \(7\frac{5}{6}-2\frac{1}{6}=5\frac{4}{6}=5\frac{2}{3}\).
  10. \(9-\frac{8}{15}=8\frac{7}{15}\).
  11. \(6-3\frac{5}{7}=2\frac{2}{7}\).
  12. \(5\frac{1}{3}-1\frac{2}{3}=3\frac{2}{3}\).