Evaluate
\frac{\sqrt{546}}{7}\approx 3.338091842
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\frac{\sqrt{78}\sqrt{7}}{\left(\sqrt{7}\right)^{2}}
Rationalize the denominator of \frac{\sqrt{78}}{\sqrt{7}} by multiplying numerator and denominator by \sqrt{7}.
\frac{\sqrt{78}\sqrt{7}}{7}
The square of \sqrt{7} is 7.
\frac{\sqrt{546}}{7}
To multiply \sqrt{78} and \sqrt{7}, multiply the numbers under the square root.
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