Evaluate
-\frac{2}{3}\approx -0.666666667
Factor
-\frac{2}{3} = -0.6666666666666666
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\frac{12}{9}-\frac{1}{9}-\frac{1}{3}-\frac{3}{2}-1+\frac{17}{18}
Least common multiple of 3 and 9 is 9. Convert \frac{4}{3} and \frac{1}{9} to fractions with denominator 9.
\frac{12-1}{9}-\frac{1}{3}-\frac{3}{2}-1+\frac{17}{18}
Since \frac{12}{9} and \frac{1}{9} have the same denominator, subtract them by subtracting their numerators.
\frac{11}{9}-\frac{1}{3}-\frac{3}{2}-1+\frac{17}{18}
Subtract 1 from 12 to get 11.
\frac{11}{9}-\frac{3}{9}-\frac{3}{2}-1+\frac{17}{18}
Least common multiple of 9 and 3 is 9. Convert \frac{11}{9} and \frac{1}{3} to fractions with denominator 9.
\frac{11-3}{9}-\frac{3}{2}-1+\frac{17}{18}
Since \frac{11}{9} and \frac{3}{9} have the same denominator, subtract them by subtracting their numerators.
\frac{8}{9}-\frac{3}{2}-1+\frac{17}{18}
Subtract 3 from 11 to get 8.
\frac{16}{18}-\frac{27}{18}-1+\frac{17}{18}
Least common multiple of 9 and 2 is 18. Convert \frac{8}{9} and \frac{3}{2} to fractions with denominator 18.
\frac{16-27}{18}-1+\frac{17}{18}
Since \frac{16}{18} and \frac{27}{18} have the same denominator, subtract them by subtracting their numerators.
-\frac{11}{18}-1+\frac{17}{18}
Subtract 27 from 16 to get -11.
-\frac{11}{18}-\frac{18}{18}+\frac{17}{18}
Convert 1 to fraction \frac{18}{18}.
\frac{-11-18}{18}+\frac{17}{18}
Since -\frac{11}{18} and \frac{18}{18} have the same denominator, subtract them by subtracting their numerators.
-\frac{29}{18}+\frac{17}{18}
Subtract 18 from -11 to get -29.
\frac{-29+17}{18}
Since -\frac{29}{18} and \frac{17}{18} have the same denominator, add them by adding their numerators.
\frac{-12}{18}
Add -29 and 17 to get -12.
-\frac{2}{3}
Reduce the fraction \frac{-12}{18} to lowest terms by extracting and canceling out 6.
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}