Evaluate
\frac{5}{36}\approx 0.138888889
Factor
\frac{5}{2 ^ {2} \cdot 3 ^ {2}} = 0.1388888888888889
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-\frac{15}{36}+\frac{20}{36}
Least common multiple of 12 and 9 is 36. Convert -\frac{5}{12} and \frac{5}{9} to fractions with denominator 36.
\frac{-15+20}{36}
Since -\frac{15}{36} and \frac{20}{36} have the same denominator, add them by adding their numerators.
\frac{5}{36}
Add -15 and 20 to get 5.
Examples
Quadratic equation
{ x } ^ { 2 } - 4 x - 5 = 0
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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}