Evaluate
-\frac{4}{15}\approx -0.266666667
Factor
-\frac{4}{15} = -0.26666666666666666
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\frac{-7\times 8}{10\times 21}
Multiply -\frac{7}{10} times \frac{8}{21} by multiplying numerator times numerator and denominator times denominator.
\frac{-56}{210}
Do the multiplications in the fraction \frac{-7\times 8}{10\times 21}.
-\frac{4}{15}
Reduce the fraction \frac{-56}{210} to lowest terms by extracting and canceling out 14.
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