Evaluate
\frac{81}{364}\approx 0.222527473
Factor
\frac{3 ^ {4}}{2 ^ {2} \cdot 7 \cdot 13} = 0.22252747252747251
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\frac{1\times 81}{4\times 91}
Multiply \frac{1}{4} times \frac{81}{91} by multiplying numerator times numerator and denominator times denominator.
\frac{81}{364}
Do the multiplications in the fraction \frac{1\times 81}{4\times 91}.
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