Evaluate
\frac{k}{18}-1
Factor
\frac{k-18}{18}
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\frac{1}{36}\times 2k-1
Calculate \frac{1}{6} to the power of 2 and get \frac{1}{36}.
\frac{2}{36}k-1
Multiply \frac{1}{36} and 2 to get \frac{2}{36}.
\frac{1}{18}k-1
Reduce the fraction \frac{2}{36} to lowest terms by extracting and canceling out 2.
\frac{k-18}{18}
Factor out \frac{1}{18}.
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