Evaluate
\frac{20}{21}\approx 0.952380952
Factor
\frac{2 ^ {2} \cdot 5}{3 \cdot 7} = 0.9523809523809523
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\frac{21\times 20}{441}
Express 21\times \frac{20}{441} as a single fraction.
\frac{420}{441}
Multiply 21 and 20 to get 420.
\frac{20}{21}
Reduce the fraction \frac{420}{441} to lowest terms by extracting and canceling out 21.
Examples
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{ x } ^ { 2 } - 4 x - 5 = 0
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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
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Limits
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