Evaluate
\frac{1}{3}\approx 0.333333333
Factor
\frac{1}{3} = 0.3333333333333333
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\frac{-3\left(-7\right)}{7\times 9}
Multiply -\frac{3}{7} times -\frac{7}{9} by multiplying numerator times numerator and denominator times denominator.
\frac{21}{63}
Do the multiplications in the fraction \frac{-3\left(-7\right)}{7\times 9}.
\frac{1}{3}
Reduce the fraction \frac{21}{63} to lowest terms by extracting and canceling out 21.
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