Evaluate
\frac{8}{63}\approx 0.126984127
Factor
\frac{2 ^ {3}}{3 ^ {2} \cdot 7} = 0.12698412698412698
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\frac{\frac{2}{3}\times 2}{\frac{6}{4}\times 7}
Divide \frac{\frac{2}{3}}{\frac{6}{4}} by \frac{7}{2} by multiplying \frac{\frac{2}{3}}{\frac{6}{4}} by the reciprocal of \frac{7}{2}.
\frac{\frac{2\times 2}{3}}{\frac{6}{4}\times 7}
Express \frac{2}{3}\times 2 as a single fraction.
\frac{\frac{4}{3}}{\frac{6}{4}\times 7}
Multiply 2 and 2 to get 4.
\frac{\frac{4}{3}}{\frac{3}{2}\times 7}
Reduce the fraction \frac{6}{4} to lowest terms by extracting and canceling out 2.
\frac{\frac{4}{3}}{\frac{3\times 7}{2}}
Express \frac{3}{2}\times 7 as a single fraction.
\frac{\frac{4}{3}}{\frac{21}{2}}
Multiply 3 and 7 to get 21.
\frac{4}{3}\times \frac{2}{21}
Divide \frac{4}{3} by \frac{21}{2} by multiplying \frac{4}{3} by the reciprocal of \frac{21}{2}.
\frac{4\times 2}{3\times 21}
Multiply \frac{4}{3} times \frac{2}{21} by multiplying numerator times numerator and denominator times denominator.
\frac{8}{63}
Do the multiplications in the fraction \frac{4\times 2}{3\times 21}.
Examples
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{ x } ^ { 2 } - 4 x - 5 = 0
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4 \sin \theta \cos \theta = 2 \sin \theta
Linear equation
y = 3x + 4
Arithmetic
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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}