Evaluate
-\frac{5}{2}=-2.5
Factor
-\frac{5}{2} = -2\frac{1}{2} = -2.5
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\frac{1}{2}-\frac{2}{1}-\left(\frac{1}{3}+\frac{2}{3}\right)
Reduce the fraction \frac{2}{4} to lowest terms by extracting and canceling out 2.
\frac{1}{2}-2-\left(\frac{1}{3}+\frac{2}{3}\right)
Anything divided by one gives itself.
\frac{1}{2}-\frac{4}{2}-\left(\frac{1}{3}+\frac{2}{3}\right)
Convert 2 to fraction \frac{4}{2}.
\frac{1-4}{2}-\left(\frac{1}{3}+\frac{2}{3}\right)
Since \frac{1}{2} and \frac{4}{2} have the same denominator, subtract them by subtracting their numerators.
-\frac{3}{2}-\left(\frac{1}{3}+\frac{2}{3}\right)
Subtract 4 from 1 to get -3.
-\frac{3}{2}-\frac{1+2}{3}
Since \frac{1}{3} and \frac{2}{3} have the same denominator, add them by adding their numerators.
-\frac{3}{2}-\frac{3}{3}
Add 1 and 2 to get 3.
-\frac{3}{2}-1
Divide 3 by 3 to get 1.
-\frac{3}{2}-\frac{2}{2}
Convert 1 to fraction \frac{2}{2}.
\frac{-3-2}{2}
Since -\frac{3}{2} and \frac{2}{2} have the same denominator, subtract them by subtracting their numerators.
-\frac{5}{2}
Subtract 2 from -3 to get -5.
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}