Evaluate
\frac{2}{5}=0.4
Factor
\frac{2}{5} = 0.4
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\frac{27\times 25\left(-4\right)^{2}}{3^{3}\times 125\times 2^{3}}
Calculate 5 to the power of 2 and get 25.
\frac{675\left(-4\right)^{2}}{3^{3}\times 125\times 2^{3}}
Multiply 27 and 25 to get 675.
\frac{675\times 16}{3^{3}\times 125\times 2^{3}}
Calculate -4 to the power of 2 and get 16.
\frac{10800}{3^{3}\times 125\times 2^{3}}
Multiply 675 and 16 to get 10800.
\frac{10800}{27\times 125\times 2^{3}}
Calculate 3 to the power of 3 and get 27.
\frac{10800}{3375\times 2^{3}}
Multiply 27 and 125 to get 3375.
\frac{10800}{3375\times 8}
Calculate 2 to the power of 3 and get 8.
\frac{10800}{27000}
Multiply 3375 and 8 to get 27000.
\frac{2}{5}
Reduce the fraction \frac{10800}{27000} to lowest terms by extracting and canceling out 5400.
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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}