50 \times 90 \% =
Evaluate
45
Factor
3^{2}\times 5
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50\times \frac{9}{10}
Reduce the fraction \frac{90}{100} to lowest terms by extracting and canceling out 10.
\frac{50\times 9}{10}
Express 50\times \frac{9}{10} as a single fraction.
\frac{450}{10}
Multiply 50 and 9 to get 450.
45
Divide 450 by 10 to get 45.
Examples
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{ x } ^ { 2 } - 4 x - 5 = 0
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4 \sin \theta \cos \theta = 2 \sin \theta
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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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