Evaluate
\frac{40}{117}\approx 0.341880342
Factor
\frac{2 ^ {3} \cdot 5}{3 ^ {2} \cdot 13} = 0.3418803418803419
Share
Copied to clipboard
\frac{5}{9}\times \frac{8}{13}
Divide \frac{5}{9} by \frac{13}{8} by multiplying \frac{5}{9} by the reciprocal of \frac{13}{8}.
\frac{5\times 8}{9\times 13}
Multiply \frac{5}{9} times \frac{8}{13} by multiplying numerator times numerator and denominator times denominator.
\frac{40}{117}
Do the multiplications in the fraction \frac{5\times 8}{9\times 13}.
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}