Evaluate
\frac{116}{21}\approx 5.523809524
Factor
\frac{2 ^ {2} \cdot 29}{3 \cdot 7} = 5\frac{11}{21} = 5.523809523809524
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\frac{28}{7}-\frac{1}{7}+\frac{1\times 3+2}{3}
Convert 4 to fraction \frac{28}{7}.
\frac{28-1}{7}+\frac{1\times 3+2}{3}
Since \frac{28}{7} and \frac{1}{7} have the same denominator, subtract them by subtracting their numerators.
\frac{27}{7}+\frac{1\times 3+2}{3}
Subtract 1 from 28 to get 27.
\frac{27}{7}+\frac{3+2}{3}
Multiply 1 and 3 to get 3.
\frac{27}{7}+\frac{5}{3}
Add 3 and 2 to get 5.
\frac{81}{21}+\frac{35}{21}
Least common multiple of 7 and 3 is 21. Convert \frac{27}{7} and \frac{5}{3} to fractions with denominator 21.
\frac{81+35}{21}
Since \frac{81}{21} and \frac{35}{21} have the same denominator, add them by adding their numerators.
\frac{116}{21}
Add 81 and 35 to get 116.
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}