\[\frac{1}{3}\sqrt{27} < 5\sqrt{\frac{1}{5}}\]
\[\frac{1}{3}\sqrt{27} = \sqrt{\frac{27}{9}} = \sqrt{3}\]
\[5\sqrt{\frac{1}{5}} = \sqrt{\frac{25}{5}} = \sqrt{5}\]
\[\sqrt{3} < \sqrt{5}.\]