Evaluate
20
Factor
2^{2}\times 5
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\left(\frac{1}{12}-\frac{9}{12}-\frac{1}{6}\right)\left(-24\right)
Least common multiple of 12 and 4 is 12. Convert \frac{1}{12} and \frac{3}{4} to fractions with denominator 12.
\left(\frac{1-9}{12}-\frac{1}{6}\right)\left(-24\right)
Since \frac{1}{12} and \frac{9}{12} have the same denominator, subtract them by subtracting their numerators.
\left(\frac{-8}{12}-\frac{1}{6}\right)\left(-24\right)
Subtract 9 from 1 to get -8.
\left(-\frac{2}{3}-\frac{1}{6}\right)\left(-24\right)
Reduce the fraction \frac{-8}{12} to lowest terms by extracting and canceling out 4.
\left(-\frac{4}{6}-\frac{1}{6}\right)\left(-24\right)
Least common multiple of 3 and 6 is 6. Convert -\frac{2}{3} and \frac{1}{6} to fractions with denominator 6.
\frac{-4-1}{6}\left(-24\right)
Since -\frac{4}{6} and \frac{1}{6} have the same denominator, subtract them by subtracting their numerators.
-\frac{5}{6}\left(-24\right)
Subtract 1 from -4 to get -5.
\frac{-5\left(-24\right)}{6}
Express -\frac{5}{6}\left(-24\right) as a single fraction.
\frac{120}{6}
Multiply -5 and -24 to get 120.
20
Divide 120 by 6 to get 20.
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}