Evaluate
-\frac{21}{2}=-10.5
Factor
-\frac{21}{2} = -10\frac{1}{2} = -10.5
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\frac{6}{2}-\frac{27}{2}
Convert 3 to fraction \frac{6}{2}.
\frac{6-27}{2}
Since \frac{6}{2} and \frac{27}{2} have the same denominator, subtract them by subtracting their numerators.
-\frac{21}{2}
Subtract 27 from 6 to get -21.
Examples
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Matrix
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Simultaneous equation
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\frac { d } { d x } \frac { ( 3 x ^ { 2 } - 2 ) } { ( x - 5 ) }
Integration
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Limits
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