Evaluate
\frac{4}{11}\approx 0.363636364
Factor
\frac{2 ^ {2}}{11} = 0.36363636363636365
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\frac{-\frac{1}{2}}{-\frac{8+3}{8}}
Multiply 1 and 8 to get 8.
\frac{-\frac{1}{2}}{-\frac{11}{8}}
Add 8 and 3 to get 11.
-\frac{1}{2}\left(-\frac{8}{11}\right)
Divide -\frac{1}{2} by -\frac{11}{8} by multiplying -\frac{1}{2} by the reciprocal of -\frac{11}{8}.
\frac{-\left(-8\right)}{2\times 11}
Multiply -\frac{1}{2} times -\frac{8}{11} by multiplying numerator times numerator and denominator times denominator.
\frac{8}{22}
Do the multiplications in the fraction \frac{-\left(-8\right)}{2\times 11}.
\frac{4}{11}
Reduce the fraction \frac{8}{22} to lowest terms by extracting and canceling out 2.
Examples
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{ x } ^ { 2 } - 4 x - 5 = 0
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4 \sin \theta \cos \theta = 2 \sin \theta
Linear equation
y = 3x + 4
Arithmetic
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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
\int _ { 0 } ^ { 1 } x e ^ { - x ^ { 2 } } d x
Limits
\lim _{x \rightarrow-3} \frac{x^{2}-9}{x^{2}+2 x-3}