Evaluate
\frac{13}{25}=0.52
Factor
\frac{13}{5 ^ {2}} = 0.52
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\frac{\frac{25+3}{5}-3}{5}
Multiply 5 and 5 to get 25.
\frac{\frac{28}{5}-3}{5}
Add 25 and 3 to get 28.
\frac{\frac{28}{5}-\frac{15}{5}}{5}
Convert 3 to fraction \frac{15}{5}.
\frac{\frac{28-15}{5}}{5}
Since \frac{28}{5} and \frac{15}{5} have the same denominator, subtract them by subtracting their numerators.
\frac{\frac{13}{5}}{5}
Subtract 15 from 28 to get 13.
\frac{13}{5\times 5}
Express \frac{\frac{13}{5}}{5} as a single fraction.
\frac{13}{25}
Multiply 5 and 5 to get 25.
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}