Ответ:

  1. \(7\cdot\frac4{37}=\frac{28}{37}.\)
  2. \(\frac7{15}\cdot3=\frac75=1\frac25.\)
  3. \(\frac8{13}\cdot26=16.\)
  4. \(4\frac47\cdot2\frac{11}{12}=\frac{32}{7}\cdot\frac{35}{12}=\frac{40}{3}=13\frac13.\)
  5. \(1\frac2{13}\cdot1\frac58=\frac{15}{13}\cdot\frac{13}{8}=1\frac78.\)
  6. \(1\frac2{13}\cdot1\frac58\cdot1\frac17=\frac{15}{8}\cdot\frac87=2\frac17.\)