230-230 \times 15 \%
Evaluate
\frac{391}{2}=195.5
Factor
\frac{17 \cdot 23}{2} = 195\frac{1}{2} = 195.5
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230-230\times \frac{3}{20}
Reduce the fraction \frac{15}{100} to lowest terms by extracting and canceling out 5.
230-\frac{230\times 3}{20}
Express 230\times \frac{3}{20} as a single fraction.
230-\frac{690}{20}
Multiply 230 and 3 to get 690.
230-\frac{69}{2}
Reduce the fraction \frac{690}{20} to lowest terms by extracting and canceling out 10.
\frac{460}{2}-\frac{69}{2}
Convert 230 to fraction \frac{460}{2}.
\frac{460-69}{2}
Since \frac{460}{2} and \frac{69}{2} have the same denominator, subtract them by subtracting their numerators.
\frac{391}{2}
Subtract 69 from 460 to get 391.
Examples
Quadratic equation
{ x } ^ { 2 } - 4 x - 5 = 0
Trigonometry
4 \sin \theta \cos \theta = 2 \sin \theta
Linear equation
y = 3x + 4
Arithmetic
699 * 533
Matrix
\left[ \begin{array} { l l } { 2 } & { 3 } \\ { 5 } & { 4 } \end{array} \right] \left[ \begin{array} { l l l } { 2 } & { 0 } & { 3 } \\ { -1 } & { 1 } & { 5 } \end{array} \right]
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
\int _ { 0 } ^ { 1 } x e ^ { - x ^ { 2 } } d x
Limits
\lim _{x \rightarrow-3} \frac{x^{2}-9}{x^{2}+2 x-3}