Evaluate
-\frac{61}{2}=-30.5
Factor
-\frac{61}{2} = -30\frac{1}{2} = -30.5
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\frac{1}{2}-\frac{62}{2}
Convert 31 to fraction \frac{62}{2}.
\frac{1-62}{2}
Since \frac{1}{2} and \frac{62}{2} have the same denominator, subtract them by subtracting their numerators.
-\frac{61}{2}
Subtract 62 from 1 to get -61.
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