90 \% \text { of } 220
Evaluate
198
Factor
2\times 3^{2}\times 11
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\frac{9}{10}\times 220
Reduce the fraction \frac{90}{100} to lowest terms by extracting and canceling out 10.
\frac{9\times 220}{10}
Express \frac{9}{10}\times 220 as a single fraction.
\frac{1980}{10}
Multiply 9 and 220 to get 1980.
198
Divide 1980 by 10 to get 198.
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
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Limits
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