Evaluate
\frac{19}{30}\approx 0.633333333
Factor
\frac{19}{2 \cdot 3 \cdot 5} = 0.6333333333333333
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\frac{\left(\frac{5}{3}-\frac{3}{4}\right)\times 5}{\frac{11}{12}\times 6}-\frac{1}{5}
Divide \frac{\frac{5}{3}-\frac{3}{4}}{\frac{11}{12}} by \frac{6}{5} by multiplying \frac{\frac{5}{3}-\frac{3}{4}}{\frac{11}{12}} by the reciprocal of \frac{6}{5}.
\frac{\left(\frac{20}{12}-\frac{9}{12}\right)\times 5}{\frac{11}{12}\times 6}-\frac{1}{5}
Least common multiple of 3 and 4 is 12. Convert \frac{5}{3} and \frac{3}{4} to fractions with denominator 12.
\frac{\frac{20-9}{12}\times 5}{\frac{11}{12}\times 6}-\frac{1}{5}
Since \frac{20}{12} and \frac{9}{12} have the same denominator, subtract them by subtracting their numerators.
\frac{\frac{11}{12}\times 5}{\frac{11}{12}\times 6}-\frac{1}{5}
Subtract 9 from 20 to get 11.
\frac{\frac{11\times 5}{12}}{\frac{11}{12}\times 6}-\frac{1}{5}
Express \frac{11}{12}\times 5 as a single fraction.
\frac{\frac{55}{12}}{\frac{11}{12}\times 6}-\frac{1}{5}
Multiply 11 and 5 to get 55.
\frac{\frac{55}{12}}{\frac{11\times 6}{12}}-\frac{1}{5}
Express \frac{11}{12}\times 6 as a single fraction.
\frac{\frac{55}{12}}{\frac{66}{12}}-\frac{1}{5}
Multiply 11 and 6 to get 66.
\frac{\frac{55}{12}}{\frac{11}{2}}-\frac{1}{5}
Reduce the fraction \frac{66}{12} to lowest terms by extracting and canceling out 6.
\frac{55}{12}\times \frac{2}{11}-\frac{1}{5}
Divide \frac{55}{12} by \frac{11}{2} by multiplying \frac{55}{12} by the reciprocal of \frac{11}{2}.
\frac{55\times 2}{12\times 11}-\frac{1}{5}
Multiply \frac{55}{12} times \frac{2}{11} by multiplying numerator times numerator and denominator times denominator.
\frac{110}{132}-\frac{1}{5}
Do the multiplications in the fraction \frac{55\times 2}{12\times 11}.
\frac{5}{6}-\frac{1}{5}
Reduce the fraction \frac{110}{132} to lowest terms by extracting and canceling out 22.
\frac{25}{30}-\frac{6}{30}
Least common multiple of 6 and 5 is 30. Convert \frac{5}{6} and \frac{1}{5} to fractions with denominator 30.
\frac{25-6}{30}
Since \frac{25}{30} and \frac{6}{30} have the same denominator, subtract them by subtracting their numerators.
\frac{19}{30}
Subtract 6 from 25 to get 19.
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}