Evaluate
\frac{4}{7}\approx 0.571428571
Factor
\frac{2 ^ {2}}{7} = 0.5714285714285714
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\frac{\frac{40}{56}-\frac{35}{56}}{\frac{5}{32}}
Least common multiple of 7 and 8 is 56. Convert \frac{5}{7} and \frac{5}{8} to fractions with denominator 56.
\frac{\frac{40-35}{56}}{\frac{5}{32}}
Since \frac{40}{56} and \frac{35}{56} have the same denominator, subtract them by subtracting their numerators.
\frac{\frac{5}{56}}{\frac{5}{32}}
Subtract 35 from 40 to get 5.
\frac{5}{56}\times \frac{32}{5}
Divide \frac{5}{56} by \frac{5}{32} by multiplying \frac{5}{56} by the reciprocal of \frac{5}{32}.
\frac{5\times 32}{56\times 5}
Multiply \frac{5}{56} times \frac{32}{5} by multiplying numerator times numerator and denominator times denominator.
\frac{32}{56}
Cancel out 5 in both numerator and denominator.
\frac{4}{7}
Reduce the fraction \frac{32}{56} to lowest terms by extracting and canceling out 8.
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}