Ответ:

  1. \(8\cdot\frac5{40}=8\cdot\frac18=1\).
  2. \(\frac{10}{24}\cdot6=\frac5{12}\cdot6=\frac52=2\frac12\).
  3. \(\frac9{22}\cdot44=9\cdot2=18\).