Evaluate
\frac{13}{8}=1.625
Factor
\frac{13}{2 ^ {3}} = 1\frac{5}{8} = 1.625
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\frac{4+3}{4}-\frac{\frac{5}{6}-\frac{1}{8}}{\frac{5\times 3+2}{3}}
Multiply 1 and 4 to get 4.
\frac{7}{4}-\frac{\frac{5}{6}-\frac{1}{8}}{\frac{5\times 3+2}{3}}
Add 4 and 3 to get 7.
\frac{7}{4}-\frac{\frac{20}{24}-\frac{3}{24}}{\frac{5\times 3+2}{3}}
Least common multiple of 6 and 8 is 24. Convert \frac{5}{6} and \frac{1}{8} to fractions with denominator 24.
\frac{7}{4}-\frac{\frac{20-3}{24}}{\frac{5\times 3+2}{3}}
Since \frac{20}{24} and \frac{3}{24} have the same denominator, subtract them by subtracting their numerators.
\frac{7}{4}-\frac{\frac{17}{24}}{\frac{5\times 3+2}{3}}
Subtract 3 from 20 to get 17.
\frac{7}{4}-\frac{\frac{17}{24}}{\frac{15+2}{3}}
Multiply 5 and 3 to get 15.
\frac{7}{4}-\frac{\frac{17}{24}}{\frac{17}{3}}
Add 15 and 2 to get 17.
\frac{7}{4}-\frac{17}{24}\times \frac{3}{17}
Divide \frac{17}{24} by \frac{17}{3} by multiplying \frac{17}{24} by the reciprocal of \frac{17}{3}.
\frac{7}{4}-\frac{17\times 3}{24\times 17}
Multiply \frac{17}{24} times \frac{3}{17} by multiplying numerator times numerator and denominator times denominator.
\frac{7}{4}-\frac{3}{24}
Cancel out 17 in both numerator and denominator.
\frac{7}{4}-\frac{1}{8}
Reduce the fraction \frac{3}{24} to lowest terms by extracting and canceling out 3.
\frac{14}{8}-\frac{1}{8}
Least common multiple of 4 and 8 is 8. Convert \frac{7}{4} and \frac{1}{8} to fractions with denominator 8.
\frac{14-1}{8}
Since \frac{14}{8} and \frac{1}{8} have the same denominator, subtract them by subtracting their numerators.
\frac{13}{8}
Subtract 1 from 14 to get 13.
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}