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Example

Simplifying 964\sqrt{\frac{9}{64}}

Simplify a square root whose radicand is a perfect square fraction by recognizing that the fraction itself is a perfect square.

964\sqrt{\frac{9}{64}}

Both the numerator and denominator are perfect squares: 9=329 = 3^2 and 64=8264 = 8^2. Since (38)2=964\left(\frac{3}{8}\right)^2 = \frac{9}{64}, the square root evaluates directly:

964=38\sqrt{\frac{9}{64}} = \frac{3}{8}

This is the simplest case of simplifying a square root of a fraction — when the radicand is already a perfect square fraction, identify the number whose square produces each part and write the result as a single fraction.

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Updated 2026-04-21

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