Evaluate
-\frac{1}{20}=-0.05
Factor
-\frac{1}{20} = -0.05
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\frac{1+1}{20}-\frac{3}{20}
Since \frac{1}{20} and \frac{1}{20} have the same denominator, add them by adding their numerators.
\frac{2}{20}-\frac{3}{20}
Add 1 and 1 to get 2.
\frac{2-3}{20}
Since \frac{2}{20} and \frac{3}{20} have the same denominator, subtract them by subtracting their numerators.
-\frac{1}{20}
Subtract 3 from 2 to get -1.
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