140 \% \text { of } 20 ?
Evaluate
28
Factor
2^{2}\times 7
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\frac{7}{5}\times 20
Reduce the fraction \frac{140}{100} to lowest terms by extracting and canceling out 20.
\frac{7\times 20}{5}
Express \frac{7}{5}\times 20 as a single fraction.
\frac{140}{5}
Multiply 7 and 20 to get 140.
28
Divide 140 by 5 to get 28.
Examples
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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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