Evaluate
\frac{15}{2}=7.5
Factor
\frac{3 \cdot 5}{2} = 7\frac{1}{2} = 7.5
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\frac{9+2}{3}+\frac{1\times 6+5}{6}+2
Multiply 3 and 3 to get 9.
\frac{11}{3}+\frac{1\times 6+5}{6}+2
Add 9 and 2 to get 11.
\frac{11}{3}+\frac{6+5}{6}+2
Multiply 1 and 6 to get 6.
\frac{11}{3}+\frac{11}{6}+2
Add 6 and 5 to get 11.
\frac{22}{6}+\frac{11}{6}+2
Least common multiple of 3 and 6 is 6. Convert \frac{11}{3} and \frac{11}{6} to fractions with denominator 6.
\frac{22+11}{6}+2
Since \frac{22}{6} and \frac{11}{6} have the same denominator, add them by adding their numerators.
\frac{33}{6}+2
Add 22 and 11 to get 33.
\frac{11}{2}+2
Reduce the fraction \frac{33}{6} to lowest terms by extracting and canceling out 3.
\frac{11}{2}+\frac{4}{2}
Convert 2 to fraction \frac{4}{2}.
\frac{11+4}{2}
Since \frac{11}{2} and \frac{4}{2} have the same denominator, add them by adding their numerators.
\frac{15}{2}
Add 11 and 4 to get 15.
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}