Evaluate
\frac{5\sqrt{77}}{14}\approx 3.133915853
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\frac{5\sqrt{11}\sqrt{7}}{2\left(\sqrt{7}\right)^{2}}
Rationalize the denominator of \frac{5\sqrt{11}}{2\sqrt{7}} by multiplying numerator and denominator by \sqrt{7}.
\frac{5\sqrt{11}\sqrt{7}}{2\times 7}
The square of \sqrt{7} is 7.
\frac{5\sqrt{77}}{2\times 7}
To multiply \sqrt{11} and \sqrt{7}, multiply the numbers under the square root.
\frac{5\sqrt{77}}{14}
Multiply 2 and 7 to get 14.
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