Divide radicals

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Learn it Divide outside numbers and inside numbers separately: $\frac{a\sqrt{b}}{c\sqrt{d}} = \frac{a}{c}\sqrt{\frac{b}{d}}$. With a sum on top, divide each term.

Example: $\frac{12\sqrt{30}}{4\sqrt{5}}$

Outside: $12 \div 4 = 3$.
Inside: $30 \div 5 = 6$.
Answer: $3\sqrt{6}$.

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