Evaluate
-\frac{6456}{875}\approx -7.378285714
Factor
-\frac{6456}{875} = -7\frac{331}{875} = -7.378285714285714
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\frac{2}{7}-\frac{958}{125}
Convert decimal number 7.664 to fraction \frac{7664}{1000}. Reduce the fraction \frac{7664}{1000} to lowest terms by extracting and canceling out 8.
\frac{250}{875}-\frac{6706}{875}
Least common multiple of 7 and 125 is 875. Convert \frac{2}{7} and \frac{958}{125} to fractions with denominator 875.
\frac{250-6706}{875}
Since \frac{250}{875} and \frac{6706}{875} have the same denominator, subtract them by subtracting their numerators.
-\frac{6456}{875}
Subtract 6706 from 250 to get -6456.
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}