help simplify

Simplify sqrt(72)/sqrt(28).

Hello Guest!

$\frac{\sqrt{72}}{\sqrt{28}}=\sqrt{\frac{72}{28}}=\sqrt{\frac{2^3\cdot3^2}{2^2\cdot 7}\cdot \frac{7}{7}} \color{blue}=\frac{ 3\cdot \sqrt{2\cdot 7}}{ 7}$

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