Evaluate
2\sqrt{3}\approx 3.464101615
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\frac{18\sqrt{3}}{3\left(\sqrt{3}\right)^{2}}
Rationalize the denominator of \frac{18}{3\sqrt{3}} by multiplying numerator and denominator by \sqrt{3}.
\frac{18\sqrt{3}}{3\times 3}
The square of \sqrt{3} is 3.
2\sqrt{3}
Cancel out 3\times 3 in both numerator and denominator.
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