Evaluate
-\frac{20}{81}\approx -0.24691358
Factor
-\frac{20}{81} = -0.24691358024691357
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\frac{4\left(-5\right)}{9\times 9}
Multiply \frac{4}{9} times -\frac{5}{9} by multiplying numerator times numerator and denominator times denominator.
\frac{-20}{81}
Do the multiplications in the fraction \frac{4\left(-5\right)}{9\times 9}.
-\frac{20}{81}
Fraction \frac{-20}{81} can be rewritten as -\frac{20}{81} by extracting the negative sign.
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Matrix
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