Evaluate
\frac{884}{21}\approx 42.095238095
Factor
\frac{2 ^ {2} \cdot 13 \cdot 17}{3 \cdot 7} = 42\frac{2}{21} = 42.095238095238095
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42+\frac{2}{21}
Multiply 2 and 21 to get 42.
\frac{882}{21}+\frac{2}{21}
Convert 42 to fraction \frac{882}{21}.
\frac{882+2}{21}
Since \frac{882}{21} and \frac{2}{21} have the same denominator, add them by adding their numerators.
\frac{884}{21}
Add 882 and 2 to get 884.
Examples
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{ x } ^ { 2 } - 4 x - 5 = 0
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y = 3x + 4
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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}