The expression \( \frac{2}{\sqrt{14}} \) can be simplified by rationalizing the denominator. To do this, multiply both the numerator and the denominator by \( \sqrt{14} \):
\[ \frac{2}{\sqrt{14}} \times \frac{\sqrt{14}}{\sqrt{14}} = \frac{2\sqrt{14}}{14} \]
Now simplify the fraction:
\[ \frac{2\sqrt{14}}{14} = \frac{\sqrt{14}}{7} \]
So, \( \frac{2}{\sqrt{14}} \) simplifies to \( \frac{\sqrt{14}}{7} \).