Evaluate
\frac{3}{8}=0.375
Factor
\frac{3}{2 ^ {3}} = 0.375
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\frac{280+27}{40}-\left(\frac{6\times 4+1}{4}+\frac{5\times 40+17}{40}\right)+\frac{4\times 8+3}{8}
Multiply 7 and 40 to get 280.
\frac{307}{40}-\left(\frac{6\times 4+1}{4}+\frac{5\times 40+17}{40}\right)+\frac{4\times 8+3}{8}
Add 280 and 27 to get 307.
\frac{307}{40}-\left(\frac{24+1}{4}+\frac{5\times 40+17}{40}\right)+\frac{4\times 8+3}{8}
Multiply 6 and 4 to get 24.
\frac{307}{40}-\left(\frac{25}{4}+\frac{5\times 40+17}{40}\right)+\frac{4\times 8+3}{8}
Add 24 and 1 to get 25.
\frac{307}{40}-\left(\frac{25}{4}+\frac{200+17}{40}\right)+\frac{4\times 8+3}{8}
Multiply 5 and 40 to get 200.
\frac{307}{40}-\left(\frac{25}{4}+\frac{217}{40}\right)+\frac{4\times 8+3}{8}
Add 200 and 17 to get 217.
\frac{307}{40}-\left(\frac{250}{40}+\frac{217}{40}\right)+\frac{4\times 8+3}{8}
Least common multiple of 4 and 40 is 40. Convert \frac{25}{4} and \frac{217}{40} to fractions with denominator 40.
\frac{307}{40}-\frac{250+217}{40}+\frac{4\times 8+3}{8}
Since \frac{250}{40} and \frac{217}{40} have the same denominator, add them by adding their numerators.
\frac{307}{40}-\frac{467}{40}+\frac{4\times 8+3}{8}
Add 250 and 217 to get 467.
\frac{307-467}{40}+\frac{4\times 8+3}{8}
Since \frac{307}{40} and \frac{467}{40} have the same denominator, subtract them by subtracting their numerators.
\frac{-160}{40}+\frac{4\times 8+3}{8}
Subtract 467 from 307 to get -160.
-4+\frac{4\times 8+3}{8}
Divide -160 by 40 to get -4.
-4+\frac{32+3}{8}
Multiply 4 and 8 to get 32.
-4+\frac{35}{8}
Add 32 and 3 to get 35.
-\frac{32}{8}+\frac{35}{8}
Convert -4 to fraction -\frac{32}{8}.
\frac{-32+35}{8}
Since -\frac{32}{8} and \frac{35}{8} have the same denominator, add them by adding their numerators.
\frac{3}{8}
Add -32 and 35 to get 3.
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}