\[\boxed{\text{363.}\text{\ }\text{еуроки}\text{-}\text{ответы}\text{\ }\text{на}\text{\ }\text{пятёрку}}\]
Пояснение.
Решение.
\[\textbf{а)}\ \sqrt{\frac{9}{64}} = \frac{3}{8}\]
\[\textbf{б)}\ \sqrt{\frac{36}{25}} = \frac{6}{5}\]
\[\textbf{в)}\ \sqrt{\frac{121}{25}} = \frac{11}{5}\]
\[\textbf{г)}\ \sqrt{1\frac{9}{16}} = \sqrt{\frac{25}{16}} = \frac{5}{4}\]
\[\textbf{д)}\ \sqrt{2\frac{7}{81}} = \sqrt{\frac{169}{81}} = \frac{13}{9}\]
\[\textbf{е)}\ \sqrt{5\frac{1}{16}} = \sqrt{\frac{81}{16}} = \frac{9}{4}\]