Ответ:

  1. \(\frac{9}{16}+\frac{19}{24}=\frac{27}{48}+\frac{38}{48}=\frac{65}{48}=1\frac{17}{48}\).
  2. \(\frac{13}{60}-\frac{7}{40}=\frac{26}{120}-\frac{21}{120}=\frac{5}{120}=\frac{1}{24}\).
  3. \(\frac{11}{42}-\frac{5}{28}=\frac{22}{84}-\frac{15}{84}=\frac{7}{84}=\frac{1}{12}\).
  4. \(\frac{9}{20}+\frac{5}{12}=\frac{27}{60}+\frac{25}{60}=\frac{52}{60}=\frac{13}{15}\).
  5. \(\frac{7}{15}-\frac{1}{6}-\frac{1}{10}=\frac{14}{30}-\frac{5}{30}-\frac{3}{30}=\frac{6}{30}=\frac{1}{5}\).

Ответ: 1) \(1\frac{17}{48}\); 2) \(\frac{1}{24}\); 3) \(\frac{1}{12}\); 4) \(\frac{13}{15}\); 5) \(\frac{1}{5}\).