To divide \( \frac{9\sqrt{33}}{27\sqrt{11}} \), we can simplify this expression step-by-step.
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Simplify the coefficients: \[ \frac{9}{27} = \frac{1}{3} \]
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Write the square roots under a single square root: \[ \frac{\sqrt{33}}{\sqrt{11}} = \sqrt{\frac{33}{11}} = \sqrt{3} \]
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Combine the results: \[ \frac{9\sqrt{33}}{27\sqrt{11}} = \frac{1}{3} \cdot \sqrt{3} = \frac{\sqrt{3}}{3} \]
Thus, the exact answer is: \[ \frac{\sqrt{3}}{3} \]