Evaluate
-\frac{28}{3}\approx -9.333333333
Factor
-\frac{28}{3} = -9\frac{1}{3} = -9.333333333333334
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\frac{20\left(-7\right)}{15}
Express 20\left(-\frac{7}{15}\right) as a single fraction.
\frac{-140}{15}
Multiply 20 and -7 to get -140.
-\frac{28}{3}
Reduce the fraction \frac{-140}{15} to lowest terms by extracting and canceling out 5.
Examples
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{ x } ^ { 2 } - 4 x - 5 = 0
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y = 3x + 4
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Matrix
\left[ \begin{array} { l l } { 2 } & { 3 } \\ { 5 } & { 4 } \end{array} \right] \left[ \begin{array} { l l l } { 2 } & { 0 } & { 3 } \\ { -1 } & { 1 } & { 5 } \end{array} \right]
Simultaneous equation
\left. \begin{cases} { 8x+2y = 46 } \\ { 7x+3y = 47 } \end{cases} \right.
Differentiation
\frac { d } { d x } \frac { ( 3 x ^ { 2 } - 2 ) } { ( x - 5 ) }
Integration
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Limits
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