Evaluate
\frac{4}{3}\approx 1.333333333
Factor
\frac{2 ^ {2}}{3} = 1\frac{1}{3} = 1.3333333333333333
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\frac{32}{81}+\frac{8\times 2}{27}+\frac{8}{81}\times 3+\frac{4}{81}
Express \frac{8}{27}\times 2 as a single fraction.
\frac{32}{81}+\frac{16}{27}+\frac{8}{81}\times 3+\frac{4}{81}
Multiply 8 and 2 to get 16.
\frac{32}{81}+\frac{48}{81}+\frac{8}{81}\times 3+\frac{4}{81}
Least common multiple of 81 and 27 is 81. Convert \frac{32}{81} and \frac{16}{27} to fractions with denominator 81.
\frac{32+48}{81}+\frac{8}{81}\times 3+\frac{4}{81}
Since \frac{32}{81} and \frac{48}{81} have the same denominator, add them by adding their numerators.
\frac{80}{81}+\frac{8}{81}\times 3+\frac{4}{81}
Add 32 and 48 to get 80.
\frac{80}{81}+\frac{8\times 3}{81}+\frac{4}{81}
Express \frac{8}{81}\times 3 as a single fraction.
\frac{80}{81}+\frac{24}{81}+\frac{4}{81}
Multiply 8 and 3 to get 24.
\frac{80+24}{81}+\frac{4}{81}
Since \frac{80}{81} and \frac{24}{81} have the same denominator, add them by adding their numerators.
\frac{104}{81}+\frac{4}{81}
Add 80 and 24 to get 104.
\frac{104+4}{81}
Since \frac{104}{81} and \frac{4}{81} have the same denominator, add them by adding their numerators.
\frac{108}{81}
Add 104 and 4 to get 108.
\frac{4}{3}
Reduce the fraction \frac{108}{81} to lowest terms by extracting and canceling out 27.
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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}