# How do you simplify 1/square root of 7?

$\frac{\sqrt{7}}{7}$
To simplify $\frac{1}{\sqrt{7}}$ we must eliminate the radical denominator.
To do this, multiply the numerator and denominator by $\sqrt{7}$
$\frac{1}{\sqrt{7}} \cdot \frac{\sqrt{7}}{\sqrt{7}} = \frac{\sqrt{7}}{7}$