Evaluate
\frac{4}{9}\approx 0.444444444
Factor
\frac{2 ^ {2}}{3 ^ {2}} = 0.4444444444444444
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\left(-\frac{4000}{90\times 5}\right)\times 10\times 5^{-2}+4
Multiply 9 and 10 to get 90.
\left(-\frac{4000}{450}\right)\times 10\times 5^{-2}+4
Multiply 90 and 5 to get 450.
-\frac{80}{9}\times 10\times 5^{-2}+4
Reduce the fraction \frac{4000}{450} to lowest terms by extracting and canceling out 50.
-\frac{800}{9}\times 5^{-2}+4
Multiply -\frac{80}{9} and 10 to get -\frac{800}{9}.
-\frac{800}{9}\times \frac{1}{25}+4
Calculate 5 to the power of -2 and get \frac{1}{25}.
-\frac{32}{9}+4
Multiply -\frac{800}{9} and \frac{1}{25} to get -\frac{32}{9}.
\frac{4}{9}
Add -\frac{32}{9} and 4 to get \frac{4}{9}.
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}