Evaluate
\frac{3\sqrt{5}}{10}\approx 0.670820393
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\frac{2\sqrt{5}\times 3}{20}
Divide 2\sqrt{5} by \frac{20}{3} by multiplying 2\sqrt{5} by the reciprocal of \frac{20}{3}.
\frac{6\sqrt{5}}{20}
Multiply 2 and 3 to get 6.
\frac{3}{10}\sqrt{5}
Divide 6\sqrt{5} by 20 to get \frac{3}{10}\sqrt{5}.
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