Evaluate
\frac{5}{19}\approx 0.263157895
Factor
\frac{5}{19} = 0.2631578947368421
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\frac{13\times 10}{2\times 13}\times \frac{1}{19}
Multiply \frac{13}{2} times \frac{10}{13} by multiplying numerator times numerator and denominator times denominator.
\frac{10}{2}\times \frac{1}{19}
Cancel out 13 in both numerator and denominator.
5\times \frac{1}{19}
Divide 10 by 2 to get 5.
\frac{5}{19}
Multiply 5 and \frac{1}{19} to get \frac{5}{19}.
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}