Evaluate
\frac{1}{8}=0.125
Factor
\frac{1}{2 ^ {3}} = 0.125
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\frac{\frac{5}{15}-\frac{3}{15}}{1+\frac{1}{3}\times \frac{1}{5}}
Least common multiple of 3 and 5 is 15. Convert \frac{1}{3} and \frac{1}{5} to fractions with denominator 15.
\frac{\frac{5-3}{15}}{1+\frac{1}{3}\times \frac{1}{5}}
Since \frac{5}{15} and \frac{3}{15} have the same denominator, subtract them by subtracting their numerators.
\frac{\frac{2}{15}}{1+\frac{1}{3}\times \frac{1}{5}}
Subtract 3 from 5 to get 2.
\frac{\frac{2}{15}}{1+\frac{1\times 1}{3\times 5}}
Multiply \frac{1}{3} times \frac{1}{5} by multiplying numerator times numerator and denominator times denominator.
\frac{\frac{2}{15}}{1+\frac{1}{15}}
Do the multiplications in the fraction \frac{1\times 1}{3\times 5}.
\frac{\frac{2}{15}}{\frac{15}{15}+\frac{1}{15}}
Convert 1 to fraction \frac{15}{15}.
\frac{\frac{2}{15}}{\frac{15+1}{15}}
Since \frac{15}{15} and \frac{1}{15} have the same denominator, add them by adding their numerators.
\frac{\frac{2}{15}}{\frac{16}{15}}
Add 15 and 1 to get 16.
\frac{2}{15}\times \frac{15}{16}
Divide \frac{2}{15} by \frac{16}{15} by multiplying \frac{2}{15} by the reciprocal of \frac{16}{15}.
\frac{2\times 15}{15\times 16}
Multiply \frac{2}{15} times \frac{15}{16} by multiplying numerator times numerator and denominator times denominator.
\frac{2}{16}
Cancel out 15 in both numerator and denominator.
\frac{1}{8}
Reduce the fraction \frac{2}{16} to lowest terms by extracting and canceling out 2.
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}