Evaluate
-\frac{20}{3}\approx -6.666666667
Factor
-\frac{20}{3} = -6\frac{2}{3} = -6.666666666666667
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\frac{1-21}{3}
Since \frac{1}{3} and \frac{21}{3} have the same denominator, subtract them by subtracting their numerators.
-\frac{20}{3}
Subtract 21 from 1 to get -20.
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Limits
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