Evaluate
\frac{66}{35}\approx 1.885714286
Factor
\frac{2 \cdot 3 \cdot 11}{5 \cdot 7} = 1\frac{31}{35} = 1.8857142857142857
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\frac{\left(\frac{5}{7}+\frac{8}{5}\right)\left(\frac{5}{6}+1\right)}{3\left(1-\frac{1}{4}\right)}
Divide \frac{\frac{5}{7}+\frac{8}{5}}{3} by \frac{1-\frac{1}{4}}{\frac{5}{6}+1} by multiplying \frac{\frac{5}{7}+\frac{8}{5}}{3} by the reciprocal of \frac{1-\frac{1}{4}}{\frac{5}{6}+1}.
\frac{\left(\frac{25}{35}+\frac{56}{35}\right)\left(\frac{5}{6}+1\right)}{3\left(1-\frac{1}{4}\right)}
Least common multiple of 7 and 5 is 35. Convert \frac{5}{7} and \frac{8}{5} to fractions with denominator 35.
\frac{\frac{25+56}{35}\left(\frac{5}{6}+1\right)}{3\left(1-\frac{1}{4}\right)}
Since \frac{25}{35} and \frac{56}{35} have the same denominator, add them by adding their numerators.
\frac{\frac{81}{35}\left(\frac{5}{6}+1\right)}{3\left(1-\frac{1}{4}\right)}
Add 25 and 56 to get 81.
\frac{\frac{81}{35}\left(\frac{5}{6}+\frac{6}{6}\right)}{3\left(1-\frac{1}{4}\right)}
Convert 1 to fraction \frac{6}{6}.
\frac{\frac{81}{35}\times \frac{5+6}{6}}{3\left(1-\frac{1}{4}\right)}
Since \frac{5}{6} and \frac{6}{6} have the same denominator, add them by adding their numerators.
\frac{\frac{81}{35}\times \frac{11}{6}}{3\left(1-\frac{1}{4}\right)}
Add 5 and 6 to get 11.
\frac{\frac{81\times 11}{35\times 6}}{3\left(1-\frac{1}{4}\right)}
Multiply \frac{81}{35} times \frac{11}{6} by multiplying numerator times numerator and denominator times denominator.
\frac{\frac{891}{210}}{3\left(1-\frac{1}{4}\right)}
Do the multiplications in the fraction \frac{81\times 11}{35\times 6}.
\frac{\frac{297}{70}}{3\left(1-\frac{1}{4}\right)}
Reduce the fraction \frac{891}{210} to lowest terms by extracting and canceling out 3.
\frac{\frac{297}{70}}{3\left(\frac{4}{4}-\frac{1}{4}\right)}
Convert 1 to fraction \frac{4}{4}.
\frac{\frac{297}{70}}{3\times \frac{4-1}{4}}
Since \frac{4}{4} and \frac{1}{4} have the same denominator, subtract them by subtracting their numerators.
\frac{\frac{297}{70}}{3\times \frac{3}{4}}
Subtract 1 from 4 to get 3.
\frac{\frac{297}{70}}{\frac{3\times 3}{4}}
Express 3\times \frac{3}{4} as a single fraction.
\frac{\frac{297}{70}}{\frac{9}{4}}
Multiply 3 and 3 to get 9.
\frac{297}{70}\times \frac{4}{9}
Divide \frac{297}{70} by \frac{9}{4} by multiplying \frac{297}{70} by the reciprocal of \frac{9}{4}.
\frac{297\times 4}{70\times 9}
Multiply \frac{297}{70} times \frac{4}{9} by multiplying numerator times numerator and denominator times denominator.
\frac{1188}{630}
Do the multiplications in the fraction \frac{297\times 4}{70\times 9}.
\frac{66}{35}
Reduce the fraction \frac{1188}{630} to lowest terms by extracting and canceling out 18.
Examples
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{ 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}