Ответ:

  1. \(\sqrt{\frac{9}{64}}=\frac{3}{8}\).
  2. \(\sqrt{\frac{36}{25}}=\frac{6}{5}\).
  3. \(\sqrt{\frac{121}{25}}=\frac{11}{5}\).
  4. \(\sqrt{1\frac{9}{16}}=\sqrt{\frac{25}{16}}=\frac{5}{4}\).
  5. \(\sqrt{2\frac{7}{81}}=\sqrt{\frac{169}{81}}=\frac{13}{9}\).
  6. \(\sqrt{5\frac{1}{16}}=\sqrt{\frac{81}{16}}=\frac{9}{4}\).

Ответ: а) \(\frac{3}{8}\); б) \(\frac{6}{5}\); в) \(\frac{11}{5}\); г) \(\frac{5}{4}\); д) \(\frac{13}{9}\); е) \(\frac{9}{4}\).