Evaluate
\frac{2}{3}\approx 0.666666667
Factor
\frac{2}{3} = 0.6666666666666666
Quiz
Arithmetic
\frac{ 1 }{ 2 } - \frac{ \frac{ 1 }{ 2 } \times - \frac{ 1 }{ 2 } }{ \frac{ 3 }{ 2 } }
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\frac{1}{2}-\frac{\frac{1\left(-1\right)}{2\times 2}}{\frac{3}{2}}
Multiply \frac{1}{2} times -\frac{1}{2} by multiplying numerator times numerator and denominator times denominator.
\frac{1}{2}-\frac{\frac{-1}{4}}{\frac{3}{2}}
Do the multiplications in the fraction \frac{1\left(-1\right)}{2\times 2}.
\frac{1}{2}-\frac{-\frac{1}{4}}{\frac{3}{2}}
Fraction \frac{-1}{4} can be rewritten as -\frac{1}{4} by extracting the negative sign.
\frac{1}{2}-\left(-\frac{1}{4}\times \frac{2}{3}\right)
Divide -\frac{1}{4} by \frac{3}{2} by multiplying -\frac{1}{4} by the reciprocal of \frac{3}{2}.
\frac{1}{2}-\frac{-2}{4\times 3}
Multiply -\frac{1}{4} times \frac{2}{3} by multiplying numerator times numerator and denominator times denominator.
\frac{1}{2}-\frac{-2}{12}
Do the multiplications in the fraction \frac{-2}{4\times 3}.
\frac{1}{2}-\left(-\frac{1}{6}\right)
Reduce the fraction \frac{-2}{12} to lowest terms by extracting and canceling out 2.
\frac{1}{2}+\frac{1}{6}
The opposite of -\frac{1}{6} is \frac{1}{6}.
\frac{3}{6}+\frac{1}{6}
Least common multiple of 2 and 6 is 6. Convert \frac{1}{2} and \frac{1}{6} to fractions with denominator 6.
\frac{3+1}{6}
Since \frac{3}{6} and \frac{1}{6} have the same denominator, add them by adding their numerators.
\frac{4}{6}
Add 3 and 1 to get 4.
\frac{2}{3}
Reduce the fraction \frac{4}{6} to lowest terms by extracting and canceling out 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}