Ответ:

  1. \(6\frac{5}{13}+2\frac{8}{13}=9\);
  2. \(5\frac{4}{7}+3\frac{6}{7}=9\frac{3}{7}\);
  3. \(1-\frac{15}{19}=\frac{4}{19}\);
  4. \(8-3\frac{4}{9}=4\frac{5}{9}\);
  5. \(7\frac{3}{8}-2\frac{5}{8}=4\frac{6}{8}=4\frac{3}{4}\);
  6. \(14\frac{15}{32}-9\frac{19}{32}=4\frac{28}{32}=4\frac{7}{8}\).