Evaluate
-\frac{16}{15}\approx -1.066666667
Factor
-\frac{16}{15} = -1\frac{1}{15} = -1.0666666666666667
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-\frac{9\times 20^{2}}{15^{3}}
Calculate 3 to the power of 2 and get 9.
-\frac{9\times 400}{15^{3}}
Calculate 20 to the power of 2 and get 400.
-\frac{3600}{15^{3}}
Multiply 9 and 400 to get 3600.
-\frac{3600}{3375}
Calculate 15 to the power of 3 and get 3375.
-\frac{16}{15}
Reduce the fraction \frac{3600}{3375} to lowest terms by extracting and canceling out 225.
Examples
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{ x } ^ { 2 } - 4 x - 5 = 0
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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}