Evaluate
\frac{3\sqrt{10}}{10}\approx 0.948683298
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\frac{60}{20\sqrt{10}}
Add 50 and 10 to get 60.
\frac{60\sqrt{10}}{20\left(\sqrt{10}\right)^{2}}
Rationalize the denominator of \frac{60}{20\sqrt{10}} by multiplying numerator and denominator by \sqrt{10}.
\frac{60\sqrt{10}}{20\times 10}
The square of \sqrt{10} is 10.
\frac{3\sqrt{10}}{10}
Cancel out 20 in both numerator and denominator.
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