Evaluate
-\frac{1}{21}\approx -0.047619048
Factor
-\frac{1}{21} = -0.047619047619047616
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\frac{-15\times 7}{49\left(6\times 7+3\right)}
Divide -\frac{15}{49} by \frac{6\times 7+3}{7} by multiplying -\frac{15}{49} by the reciprocal of \frac{6\times 7+3}{7}.
\frac{-15}{7\left(3+6\times 7\right)}
Cancel out 7 in both numerator and denominator.
\frac{-15}{7\left(3+42\right)}
Multiply 6 and 7 to get 42.
\frac{-15}{7\times 45}
Add 3 and 42 to get 45.
\frac{-15}{315}
Multiply 7 and 45 to get 315.
-\frac{1}{21}
Reduce the fraction \frac{-15}{315} to lowest terms by extracting and canceling out 15.
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