40 \times 30 \%
Evaluate
12
Factor
2^{2}\times 3
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40\times \frac{3}{10}
Reduce the fraction \frac{30}{100} to lowest terms by extracting and canceling out 10.
\frac{40\times 3}{10}
Express 40\times \frac{3}{10} as a single fraction.
\frac{120}{10}
Multiply 40 and 3 to get 120.
12
Divide 120 by 10 to get 12.
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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