Evaluate
\frac{49}{2160}\approx 0.022685185
Factor
\frac{7 ^ {2}}{2 ^ {4} \cdot 3 ^ {3} \cdot 5} = 0.022685185185185187
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\frac{7}{80}\times \frac{7}{27}
Reduce the fraction \frac{21}{81} to lowest terms by extracting and canceling out 3.
\frac{7\times 7}{80\times 27}
Multiply \frac{7}{80} times \frac{7}{27} by multiplying numerator times numerator and denominator times denominator.
\frac{49}{2160}
Do the multiplications in the fraction \frac{7\times 7}{80\times 27}.
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