Evaluate
\frac{40}{51}\approx 0.784313725
Factor
\frac{2 ^ {3} \cdot 5}{3 \cdot 17} = 0.7843137254901961
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\frac{\frac{9}{3}+\frac{1}{3}}{5-\frac{3}{4}}
Convert 3 to fraction \frac{9}{3}.
\frac{\frac{9+1}{3}}{5-\frac{3}{4}}
Since \frac{9}{3} and \frac{1}{3} have the same denominator, add them by adding their numerators.
\frac{\frac{10}{3}}{5-\frac{3}{4}}
Add 9 and 1 to get 10.
\frac{\frac{10}{3}}{\frac{20}{4}-\frac{3}{4}}
Convert 5 to fraction \frac{20}{4}.
\frac{\frac{10}{3}}{\frac{20-3}{4}}
Since \frac{20}{4} and \frac{3}{4} have the same denominator, subtract them by subtracting their numerators.
\frac{\frac{10}{3}}{\frac{17}{4}}
Subtract 3 from 20 to get 17.
\frac{10}{3}\times \frac{4}{17}
Divide \frac{10}{3} by \frac{17}{4} by multiplying \frac{10}{3} by the reciprocal of \frac{17}{4}.
\frac{10\times 4}{3\times 17}
Multiply \frac{10}{3} times \frac{4}{17} by multiplying numerator times numerator and denominator times denominator.
\frac{40}{51}
Do the multiplications in the fraction \frac{10\times 4}{3\times 17}.
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}