Evaluate
\frac{21}{104}\approx 0.201923077
Factor
\frac{3 \cdot 7}{2 ^ {3} \cdot 13} = 0.20192307692307693
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\frac{3\times 7}{8\times 13}+0
Multiply \frac{3}{8} times \frac{7}{13} by multiplying numerator times numerator and denominator times denominator.
\frac{21}{104}+0
Do the multiplications in the fraction \frac{3\times 7}{8\times 13}.
\frac{21}{104}
Add \frac{21}{104} and 0 to get \frac{21}{104}.
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