Evaluate
-\frac{15}{4}=-3.75
Factor
-\frac{15}{4} = -3\frac{3}{4} = -3.75
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-\frac{3}{4}-\frac{12}{4}
Convert 3 to fraction \frac{12}{4}.
\frac{-3-12}{4}
Since -\frac{3}{4} and \frac{12}{4} have the same denominator, subtract them by subtracting their numerators.
-\frac{15}{4}
Subtract 12 from -3 to get -15.
Examples
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Matrix
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Simultaneous equation
\left. \begin{cases} { 8x+2y = 46 } \\ { 7x+3y = 47 } \end{cases} \right.
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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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