Evaluate
\frac{8}{243}\approx 0.032921811
Factor
\frac{2 ^ {3}}{3 ^ {5}} = 0.03292181069958848
Share
Copied to clipboard
\frac{1}{2^{-3}\times 3^{5}}
To divide powers of the same base, subtract the numerator's exponent from the denominator's exponent.
\frac{1}{\frac{1}{8}\times 3^{5}}
Calculate 2 to the power of -3 and get \frac{1}{8}.
\frac{1}{\frac{1}{8}\times 243}
Calculate 3 to the power of 5 and get 243.
\frac{1}{\frac{243}{8}}
Multiply \frac{1}{8} and 243 to get \frac{243}{8}.
1\times \frac{8}{243}
Divide 1 by \frac{243}{8} by multiplying 1 by the reciprocal of \frac{243}{8}.
\frac{8}{243}
Multiply 1 and \frac{8}{243} to get \frac{8}{243}.
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}