Ответ:

  1. \(1.5\cdot\frac1{15}=\frac32\cdot\frac1{15}=\frac1{10}=0.1\).
  2. \(5.5\cdot\frac3{11}=\frac{11}2\cdot\frac3{11}=\frac32=1.5\).
  3. \(5:\frac5{11}=5\cdot\frac{11}5=11\).
  4. \(3.2:\frac{16}{17}=\frac{16}5\cdot\frac{17}{16}=\frac{17}5=3.4\).
  5. \(2\frac23:64=\frac83:64=\frac83\cdot\frac1{64}=\frac1{24}\).

Ответ: 0,1; 1,5; 11; 3,4; \(\frac1{24}\).