Evaluate
\frac{\sqrt{5}}{15}\approx 0.149071198
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\frac{\sqrt{5}}{3\left(\sqrt{5}\right)^{2}}
Rationalize the denominator of \frac{1}{3\sqrt{5}} by multiplying numerator and denominator by \sqrt{5}.
\frac{\sqrt{5}}{3\times 5}
The square of \sqrt{5} is 5.
\frac{\sqrt{5}}{15}
Multiply 3 and 5 to get 15.
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