Evaluate
\frac{71}{8}=8.875
Factor
\frac{71}{2 ^ {3}} = 8\frac{7}{8} = 8.875
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\frac{12}{4}+\frac{5}{4}-\left(-\frac{3}{8}-5+\frac{3}{4}\right)
Convert 3 to fraction \frac{12}{4}.
\frac{12+5}{4}-\left(-\frac{3}{8}-5+\frac{3}{4}\right)
Since \frac{12}{4} and \frac{5}{4} have the same denominator, add them by adding their numerators.
\frac{17}{4}-\left(-\frac{3}{8}-5+\frac{3}{4}\right)
Add 12 and 5 to get 17.
\frac{17}{4}-\left(-\frac{3}{8}-\frac{40}{8}+\frac{3}{4}\right)
Convert 5 to fraction \frac{40}{8}.
\frac{17}{4}-\left(\frac{-3-40}{8}+\frac{3}{4}\right)
Since -\frac{3}{8} and \frac{40}{8} have the same denominator, subtract them by subtracting their numerators.
\frac{17}{4}-\left(-\frac{43}{8}+\frac{3}{4}\right)
Subtract 40 from -3 to get -43.
\frac{17}{4}-\left(-\frac{43}{8}+\frac{6}{8}\right)
Least common multiple of 8 and 4 is 8. Convert -\frac{43}{8} and \frac{3}{4} to fractions with denominator 8.
\frac{17}{4}-\frac{-43+6}{8}
Since -\frac{43}{8} and \frac{6}{8} have the same denominator, add them by adding their numerators.
\frac{17}{4}-\left(-\frac{37}{8}\right)
Add -43 and 6 to get -37.
\frac{17}{4}+\frac{37}{8}
The opposite of -\frac{37}{8} is \frac{37}{8}.
\frac{34}{8}+\frac{37}{8}
Least common multiple of 4 and 8 is 8. Convert \frac{17}{4} and \frac{37}{8} to fractions with denominator 8.
\frac{34+37}{8}
Since \frac{34}{8} and \frac{37}{8} have the same denominator, add them by adding their numerators.
\frac{71}{8}
Add 34 and 37 to get 71.
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}