Evaluate
-\frac{3280}{729}\approx -4.499314129
Factor
-\frac{3280}{729} = -4\frac{364}{729} = -4.499314128943759
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4.5\left(\frac{1}{6561}-\frac{6561}{6561}\right)
Convert 1 to fraction \frac{6561}{6561}.
4.5\times \frac{1-6561}{6561}
Since \frac{1}{6561} and \frac{6561}{6561} have the same denominator, subtract them by subtracting their numerators.
4.5\left(-\frac{6560}{6561}\right)
Subtract 6561 from 1 to get -6560.
\frac{9}{2}\left(-\frac{6560}{6561}\right)
Convert decimal number 4.5 to fraction \frac{45}{10}. Reduce the fraction \frac{45}{10} to lowest terms by extracting and canceling out 5.
\frac{9\left(-6560\right)}{2\times 6561}
Multiply \frac{9}{2} times -\frac{6560}{6561} by multiplying numerator times numerator and denominator times denominator.
\frac{-59040}{13122}
Do the multiplications in the fraction \frac{9\left(-6560\right)}{2\times 6561}.
-\frac{3280}{729}
Reduce the fraction \frac{-59040}{13122} to lowest terms by extracting and canceling out 18.
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}