\frac { 20 } { 100 } \cdot 129,90
Evaluate
25,98
Factor
\frac{3 \cdot 433}{2 \cdot 5 ^ {2}} = 25\frac{49}{50} = 25.98
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\frac{1}{5}\times 129,9
Reduce the fraction \frac{20}{100} to lowest terms by extracting and canceling out 20.
\frac{1}{5}\times \frac{1299}{10}
Convert decimal number 129,9 to fraction \frac{1299}{10}.
\frac{1\times 1299}{5\times 10}
Multiply \frac{1}{5} times \frac{1299}{10} by multiplying numerator times numerator and denominator times denominator.
\frac{1299}{50}
Do the multiplications in the fraction \frac{1\times 1299}{5\times 10}.
Examples
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{ 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}