Evaluate
\frac{9\sqrt{7}}{7000000}\approx 0.000003402
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\frac{0.000009\sqrt{7}}{\left(\sqrt{7}\right)^{2}}
Rationalize the denominator of \frac{0.000009}{\sqrt{7}} by multiplying numerator and denominator by \sqrt{7}.
\frac{0.000009\sqrt{7}}{7}
The square of \sqrt{7} is 7.
\frac{9}{7000000}\sqrt{7}
Divide 0.000009\sqrt{7} by 7 to get \frac{9}{7000000}\sqrt{7}.
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