Evaluate
\frac{8}{3}\approx 2.666666667
Factor
\frac{2 ^ {3}}{3} = 2\frac{2}{3} = 2.6666666666666665
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\frac{5\times 8}{1\times 8+7}
Divide 5 by \frac{1\times 8+7}{8} by multiplying 5 by the reciprocal of \frac{1\times 8+7}{8}.
\frac{40}{1\times 8+7}
Multiply 5 and 8 to get 40.
\frac{40}{8+7}
Multiply 1 and 8 to get 8.
\frac{40}{15}
Add 8 and 7 to get 15.
\frac{8}{3}
Reduce the fraction \frac{40}{15} to lowest terms by extracting and canceling out 5.
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{ x } ^ { 2 } - 4 x - 5 = 0
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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}