Evaluate
-2
Factor
-2
Quiz
Arithmetic
5 problems similar to:
2 - 6 ( \frac { 1 } { 2 } - \frac { 2 } { 3 } + \frac { 5 } { 6 } )
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2-6\left(\frac{3}{6}-\frac{4}{6}+\frac{5}{6}\right)
Least common multiple of 2 and 3 is 6. Convert \frac{1}{2} and \frac{2}{3} to fractions with denominator 6.
2-6\left(\frac{3-4}{6}+\frac{5}{6}\right)
Since \frac{3}{6} and \frac{4}{6} have the same denominator, subtract them by subtracting their numerators.
2-6\left(-\frac{1}{6}+\frac{5}{6}\right)
Subtract 4 from 3 to get -1.
2-6\times \frac{-1+5}{6}
Since -\frac{1}{6} and \frac{5}{6} have the same denominator, add them by adding their numerators.
2-6\times \frac{4}{6}
Add -1 and 5 to get 4.
2-6\times \frac{2}{3}
Reduce the fraction \frac{4}{6} to lowest terms by extracting and canceling out 2.
2-\frac{6\times 2}{3}
Express 6\times \frac{2}{3} as a single fraction.
2-\frac{12}{3}
Multiply 6 and 2 to get 12.
2-4
Divide 12 by 3 to get 4.
-2
Subtract 4 from 2 to get -2.
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}