Evaluate
\frac{81}{4310}\approx 0.018793503
Factor
\frac{3 ^ {4}}{2 \cdot 5 \cdot 431} = 0.01879350348027842
Share
Copied to clipboard
4.05\times \frac{2}{431}
Divide 4.05 by \frac{431}{2} by multiplying 4.05 by the reciprocal of \frac{431}{2}.
\frac{81}{20}\times \frac{2}{431}
Convert decimal number 4.05 to fraction \frac{405}{100}. Reduce the fraction \frac{405}{100} to lowest terms by extracting and canceling out 5.
\frac{81\times 2}{20\times 431}
Multiply \frac{81}{20} times \frac{2}{431} by multiplying numerator times numerator and denominator times denominator.
\frac{162}{8620}
Do the multiplications in the fraction \frac{81\times 2}{20\times 431}.
\frac{81}{4310}
Reduce the fraction \frac{162}{8620} to lowest terms by extracting and canceling out 2.
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}