Evaluate
\frac{91}{2}=45.5
Factor
\frac{7 \cdot 13}{2} = 45\frac{1}{2} = 45.5
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\frac{88+3}{8}\times 4
Multiply 11 and 8 to get 88.
\frac{91}{8}\times 4
Add 88 and 3 to get 91.
\frac{91\times 4}{8}
Express \frac{91}{8}\times 4 as a single fraction.
\frac{364}{8}
Multiply 91 and 4 to get 364.
\frac{91}{2}
Reduce the fraction \frac{364}{8} to lowest terms by extracting and canceling out 4.
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
699 * 533
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}