Evaluate
\frac{67}{168}\approx 0.398809524
Factor
\frac{67}{2 ^ {3} \cdot 3 \cdot 7} = 0.39880952380952384
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\frac{23}{24}+\frac{8}{24}-\left(\frac{3}{4}+\frac{1}{7}\right)
Least common multiple of 24 and 3 is 24. Convert \frac{23}{24} and \frac{1}{3} to fractions with denominator 24.
\frac{23+8}{24}-\left(\frac{3}{4}+\frac{1}{7}\right)
Since \frac{23}{24} and \frac{8}{24} have the same denominator, add them by adding their numerators.
\frac{31}{24}-\left(\frac{3}{4}+\frac{1}{7}\right)
Add 23 and 8 to get 31.
\frac{31}{24}-\left(\frac{21}{28}+\frac{4}{28}\right)
Least common multiple of 4 and 7 is 28. Convert \frac{3}{4} and \frac{1}{7} to fractions with denominator 28.
\frac{31}{24}-\frac{21+4}{28}
Since \frac{21}{28} and \frac{4}{28} have the same denominator, add them by adding their numerators.
\frac{31}{24}-\frac{25}{28}
Add 21 and 4 to get 25.
\frac{217}{168}-\frac{150}{168}
Least common multiple of 24 and 28 is 168. Convert \frac{31}{24} and \frac{25}{28} to fractions with denominator 168.
\frac{217-150}{168}
Since \frac{217}{168} and \frac{150}{168} have the same denominator, subtract them by subtracting their numerators.
\frac{67}{168}
Subtract 150 from 217 to get 67.
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}