Evaluate
-\frac{1}{3}\approx -0.333333333
Factor
-\frac{1}{3} = -0.3333333333333333
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-3-\frac{2}{3}\left(-4\right)
Divide \frac{2}{3} by -\frac{1}{4} by multiplying \frac{2}{3} by the reciprocal of -\frac{1}{4}.
-3-\frac{2\left(-4\right)}{3}
Express \frac{2}{3}\left(-4\right) as a single fraction.
-3-\frac{-8}{3}
Multiply 2 and -4 to get -8.
-3-\left(-\frac{8}{3}\right)
Fraction \frac{-8}{3} can be rewritten as -\frac{8}{3} by extracting the negative sign.
-3+\frac{8}{3}
The opposite of -\frac{8}{3} is \frac{8}{3}.
-\frac{9}{3}+\frac{8}{3}
Convert -3 to fraction -\frac{9}{3}.
\frac{-9+8}{3}
Since -\frac{9}{3} and \frac{8}{3} have the same denominator, add them by adding their numerators.
-\frac{1}{3}
Add -9 and 8 to get -1.
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}