Evaluate
\frac{4}{189}\approx 0.021164021
Factor
\frac{2 ^ {2}}{3 ^ {3} \cdot 7} = 0.021164021164021163
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\frac{4}{7\times 27}
Express \frac{\frac{4}{7}}{27} as a single fraction.
\frac{4}{189}
Multiply 7 and 27 to get 189.
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
699 * 533
Matrix
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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}