Ответ:

\(3\frac35:a=\frac{18}{5}:a\).

  1. При \(a=\frac9{25}\): \(\frac{18}{5}\cdot\frac{25}{9}=10\).
  2. При \(a=1\): \(\frac{18}{5}=3\frac35\).
  3. При \(a=1\frac15\): \(\frac{18}{5}:\frac65=3\).
  4. При \(a=1\frac13\): \(\frac{18}{5}:\frac43=\frac{27}{10}=2\frac7{10}\).
  5. При \(a=2\frac7{10}\): \(\frac{18}{5}:\frac{27}{10}=\frac43=1\frac13\).
  6. При \(a=3\): \(\frac{18}{5}:3=\frac65=1\frac15\).
  7. При \(a=3\frac35\): \(\frac{18}{5}:\frac{18}{5}=1\).

Ответ: \(10;\ 3\frac35;\ 3;\ 2\frac7{10};\ 1\frac13;\ 1\frac15;\ 1\).