( \frac { - 2 } { 5 } ) ^ { 2 } : ( - 0,3 ) ^ { 2 }
Evaluate
\frac{16}{9}\approx 1,777777778
Factor
\frac{2 ^ {4}}{3 ^ {2}} = 1\frac{7}{9} = 1.7777777777777777
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\frac{\left(-\frac{2}{5}\right)^{2}}{\left(-0,3\right)^{2}}
Fraction \frac{-2}{5} can be rewritten as -\frac{2}{5} by extracting the negative sign.
\frac{\frac{4}{25}}{\left(-0,3\right)^{2}}
Calculate -\frac{2}{5} to the power of 2 and get \frac{4}{25}.
\frac{\frac{4}{25}}{0,09}
Calculate -0,3 to the power of 2 and get 0,09.
\frac{4}{25\times 0,09}
Express \frac{\frac{4}{25}}{0,09} as a single fraction.
\frac{4}{2,25}
Multiply 25 and 0,09 to get 2,25.
\frac{400}{225}
Expand \frac{4}{2,25} by multiplying both numerator and the denominator by 100.
\frac{16}{9}
Reduce the fraction \frac{400}{225} to lowest terms by extracting and canceling out 25.
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}