Evaluate
-\frac{25}{9}\approx -2.777777778
Factor
-\frac{25}{9} = -2\frac{7}{9} = -2.7777777777777777
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-\frac{5}{8}\left(-\frac{10}{3}\right)\left(-\frac{3+1}{3}\right)
Divide -\frac{5}{8} by -\frac{3}{10} by multiplying -\frac{5}{8} by the reciprocal of -\frac{3}{10}.
\frac{-5\left(-10\right)}{8\times 3}\left(-\frac{1\times 3+1}{3}\right)
Multiply -\frac{5}{8} times -\frac{10}{3} by multiplying numerator times numerator and denominator times denominator.
\frac{50}{24}\left(-\frac{1\times 3+1}{3}\right)
Do the multiplications in the fraction \frac{-5\left(-10\right)}{8\times 3}.
\frac{25}{12}\left(-\frac{1\times 3+1}{3}\right)
Reduce the fraction \frac{50}{24} to lowest terms by extracting and canceling out 2.
\frac{25}{12}\left(-\frac{3+1}{3}\right)
Multiply 1 and 3 to get 3.
\frac{25}{12}\left(-\frac{4}{3}\right)
Add 3 and 1 to get 4.
\frac{25\left(-4\right)}{12\times 3}
Multiply \frac{25}{12} times -\frac{4}{3} by multiplying numerator times numerator and denominator times denominator.
\frac{-100}{36}
Do the multiplications in the fraction \frac{25\left(-4\right)}{12\times 3}.
-\frac{25}{9}
Reduce the fraction \frac{-100}{36} to lowest terms by extracting and canceling out 4.
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}