Evaluate
\frac{23}{2}=11.5
Factor
\frac{23}{2} = 11\frac{1}{2} = 11.5
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15+2+1\times \frac{17}{2}+\left(7\left(\frac{3\times 10}{5\times 2+4}-3\right)-1\right)\times 2
Multiply 3 and 5 to get 15.
17+1\times \frac{17}{2}+\left(7\left(\frac{3\times 10}{5\times 2+4}-3\right)-1\right)\times 2
Add 15 and 2 to get 17.
17+\frac{17}{2}+\left(7\left(\frac{3\times 10}{5\times 2+4}-3\right)-1\right)\times 2
Multiply 1 and \frac{17}{2} to get \frac{17}{2}.
\frac{34}{2}+\frac{17}{2}+\left(7\left(\frac{3\times 10}{5\times 2+4}-3\right)-1\right)\times 2
Convert 17 to fraction \frac{34}{2}.
\frac{34+17}{2}+\left(7\left(\frac{3\times 10}{5\times 2+4}-3\right)-1\right)\times 2
Since \frac{34}{2} and \frac{17}{2} have the same denominator, add them by adding their numerators.
\frac{51}{2}+\left(7\left(\frac{3\times 10}{5\times 2+4}-3\right)-1\right)\times 2
Add 34 and 17 to get 51.
\frac{51}{2}+\left(7\left(\frac{30}{5\times 2+4}-3\right)-1\right)\times 2
Multiply 3 and 10 to get 30.
\frac{51}{2}+\left(7\left(\frac{30}{10+4}-3\right)-1\right)\times 2
Multiply 5 and 2 to get 10.
\frac{51}{2}+\left(7\left(\frac{30}{14}-3\right)-1\right)\times 2
Add 10 and 4 to get 14.
\frac{51}{2}+\left(7\left(\frac{15}{7}-3\right)-1\right)\times 2
Reduce the fraction \frac{30}{14} to lowest terms by extracting and canceling out 2.
\frac{51}{2}+\left(7\left(\frac{15}{7}-\frac{21}{7}\right)-1\right)\times 2
Convert 3 to fraction \frac{21}{7}.
\frac{51}{2}+\left(7\times \frac{15-21}{7}-1\right)\times 2
Since \frac{15}{7} and \frac{21}{7} have the same denominator, subtract them by subtracting their numerators.
\frac{51}{2}+\left(7\left(-\frac{6}{7}\right)-1\right)\times 2
Subtract 21 from 15 to get -6.
\frac{51}{2}+\left(-6-1\right)\times 2
Cancel out 7 and 7.
\frac{51}{2}-7\times 2
Subtract 1 from -6 to get -7.
\frac{51}{2}-14
Multiply -7 and 2 to get -14.
\frac{51}{2}-\frac{28}{2}
Convert 14 to fraction \frac{28}{2}.
\frac{51-28}{2}
Since \frac{51}{2} and \frac{28}{2} have the same denominator, subtract them by subtracting their numerators.
\frac{23}{2}
Subtract 28 from 51 to get 23.
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}