Evaluate
\frac{8}{21}\approx 0.380952381
Factor
\frac{2 ^ {3}}{3 \cdot 7} = 0.38095238095238093
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\frac{8\times 13}{39\times 7}
Multiply \frac{8}{39} times \frac{13}{7} by multiplying numerator times numerator and denominator times denominator.
\frac{104}{273}
Do the multiplications in the fraction \frac{8\times 13}{39\times 7}.
\frac{8}{21}
Reduce the fraction \frac{104}{273} to lowest terms by extracting and canceling out 13.
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