Evaluate
\frac{33}{2}=16.5
Factor
\frac{3 \cdot 11}{2} = 16\frac{1}{2} = 16.5
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3\left(\frac{12}{2}-\frac{1}{2}\right)
Convert 6 to fraction \frac{12}{2}.
3\times \frac{12-1}{2}
Since \frac{12}{2} and \frac{1}{2} have the same denominator, subtract them by subtracting their numerators.
3\times \frac{11}{2}
Subtract 1 from 12 to get 11.
\frac{3\times 11}{2}
Express 3\times \frac{11}{2} as a single fraction.
\frac{33}{2}
Multiply 3 and 11 to get 33.
Examples
Quadratic equation
{ x } ^ { 2 } - 4 x - 5 = 0
Trigonometry
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}