( \frac{ 8 }{ 9 } + \frac{ 4 }{ 9 } + \frac{ 1 }{ 9 }
Evaluate
\frac{13}{9}\approx 1.444444444
Factor
\frac{13}{3 ^ {2}} = 1\frac{4}{9} = 1.4444444444444444
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\frac{8+4}{9}+\frac{1}{9}
Since \frac{8}{9} and \frac{4}{9} have the same denominator, add them by adding their numerators.
\frac{12}{9}+\frac{1}{9}
Add 8 and 4 to get 12.
\frac{12+1}{9}
Since \frac{12}{9} and \frac{1}{9} have the same denominator, add them by adding their numerators.
\frac{13}{9}
Add 12 and 1 to get 13.
Examples
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{ x } ^ { 2 } - 4 x - 5 = 0
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4 \sin \theta \cos \theta = 2 \sin \theta
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y = 3x + 4
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Matrix
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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}