Tap the blue circles to see an explanation.
$$ \begin{aligned}\frac{1}{3\sqrt{6}}& \xlongequal{ \color{blue}{ \text{\normalsize{ \htmlClass{explanationCircle explanationCircle1}{\textcircled {1}} } }}}\frac{1}{3\sqrt{6}}\frac{\sqrt{6}}{\sqrt{6}} \xlongequal{ } \\[1 em] & \xlongequal{ \color{blue}{ \text{\normalsize{ \htmlClass{explanationCircle explanationCircle2}{\textcircled {2}} } }}}\frac{\sqrt{6}}{18}\end{aligned} $$ | |
① | Multiply the numerator and denominator by the conjugate of the denominator . $$\color{blue}{ \sqrt{6}} $$. |
② | Multiply in a numerator. $$ \color{blue}{ 1 } \cdot \sqrt{6} = \sqrt{6} $$ Simplify denominator. $$ \color{blue}{ 3 \sqrt{6} } \cdot \sqrt{6} = 18 $$ |