Ответ:

  1. \(\frac{1}{6}+\frac{5}{8}=\frac{4}{24}+\frac{15}{24}=\frac{19}{24}\).
  2. \(\frac{7}{8}+\frac{5}{14}=\frac{49}{56}+\frac{20}{56}=\frac{69}{56}=1\frac{13}{56}\).
  3. \(\frac{7}{10}+\frac{3}{25}=\frac{35}{50}+\frac{6}{50}=\frac{41}{50}\).
  4. \(\frac{27}{70}+\frac{16}{105}=\frac{81}{210}+\frac{32}{210}=\frac{113}{210}\).
  5. \(\frac{11}{18}+\frac{1}{8}=\frac{44}{72}+\frac{9}{72}=\frac{53}{72}\).
  6. \(\frac{5}{12}+\frac{3}{4}=\frac{5}{12}+\frac{9}{12}=\frac{14}{12}=\frac{7}{6}=1\frac{1}{6}\).

Ответ: а) \(\frac{19}{24}\); б) \(1\frac{13}{56}\); в) \(\frac{41}{50}\); г) \(\frac{113}{210}\); д) \(\frac{53}{72}\); е) \(1\frac{1}{6}\).