Evaluate
\frac{2\sqrt{15}}{15}\approx 0.516397779
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\frac{2\sqrt{15}}{\left(\sqrt{15}\right)^{2}}
Rationalize the denominator of \frac{2}{\sqrt{15}} by multiplying numerator and denominator by \sqrt{15}.
\frac{2\sqrt{15}}{15}
The square of \sqrt{15} is 15.
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