Evaluate
\frac{115}{13}\approx 8.846153846
Factor
\frac{5 \cdot 23}{13} = 8\frac{11}{13} = 8.846153846153847
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7+\frac{3000}{1625}
Expand \frac{3}{1.625} by multiplying both numerator and the denominator by 1000.
7+\frac{24}{13}
Reduce the fraction \frac{3000}{1625} to lowest terms by extracting and canceling out 125.
\frac{91}{13}+\frac{24}{13}
Convert 7 to fraction \frac{91}{13}.
\frac{91+24}{13}
Since \frac{91}{13} and \frac{24}{13} have the same denominator, add them by adding their numerators.
\frac{115}{13}
Add 91 and 24 to get 115.
Examples
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{ x } ^ { 2 } - 4 x - 5 = 0
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4 \sin \theta \cos \theta = 2 \sin \theta
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y = 3x + 4
Arithmetic
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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}