Evaluate
\frac{20}{9}\approx 2.222222222
Factor
\frac{2 ^ {2} \cdot 5}{3 ^ {2}} = 2\frac{2}{9} = 2.2222222222222223
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\frac{9+1}{9}\times \frac{1\times 10+10}{10}
Multiply 1 and 9 to get 9.
\frac{10}{9}\times \frac{1\times 10+10}{10}
Add 9 and 1 to get 10.
\frac{10}{9}\times \frac{10+10}{10}
Multiply 1 and 10 to get 10.
\frac{10}{9}\times \frac{20}{10}
Add 10 and 10 to get 20.
\frac{10}{9}\times 2
Divide 20 by 10 to get 2.
\frac{10\times 2}{9}
Express \frac{10}{9}\times 2 as a single fraction.
\frac{20}{9}
Multiply 10 and 2 to get 20.
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}