Evaluate
\frac{84}{13}\approx 6.461538462
Factor
\frac{2 ^ {2} \cdot 3 \cdot 7}{13} = 6\frac{6}{13} = 6.461538461538462
Quiz
Arithmetic
5 problems similar to:
5 \frac { 9 } { 10 } + 4 \frac { 6 } { 13 } - 3 \frac { 9 } { 10 }
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\frac{50+9}{10}+\frac{4\times 13+6}{13}-\frac{3\times 10+9}{10}
Multiply 5 and 10 to get 50.
\frac{59}{10}+\frac{4\times 13+6}{13}-\frac{3\times 10+9}{10}
Add 50 and 9 to get 59.
\frac{59}{10}+\frac{52+6}{13}-\frac{3\times 10+9}{10}
Multiply 4 and 13 to get 52.
\frac{59}{10}+\frac{58}{13}-\frac{3\times 10+9}{10}
Add 52 and 6 to get 58.
\frac{767}{130}+\frac{580}{130}-\frac{3\times 10+9}{10}
Least common multiple of 10 and 13 is 130. Convert \frac{59}{10} and \frac{58}{13} to fractions with denominator 130.
\frac{767+580}{130}-\frac{3\times 10+9}{10}
Since \frac{767}{130} and \frac{580}{130} have the same denominator, add them by adding their numerators.
\frac{1347}{130}-\frac{3\times 10+9}{10}
Add 767 and 580 to get 1347.
\frac{1347}{130}-\frac{30+9}{10}
Multiply 3 and 10 to get 30.
\frac{1347}{130}-\frac{39}{10}
Add 30 and 9 to get 39.
\frac{1347}{130}-\frac{507}{130}
Least common multiple of 130 and 10 is 130. Convert \frac{1347}{130} and \frac{39}{10} to fractions with denominator 130.
\frac{1347-507}{130}
Since \frac{1347}{130} and \frac{507}{130} have the same denominator, subtract them by subtracting their numerators.
\frac{840}{130}
Subtract 507 from 1347 to get 840.
\frac{84}{13}
Reduce the fraction \frac{840}{130} to lowest terms by extracting and canceling out 10.
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}