Evaluate
\frac{9}{20}=0.45
Factor
\frac{3 ^ {2}}{2 ^ {2} \cdot 5} = 0.45
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\frac{\frac{3}{4}+\frac{2}{1}}{\frac{3}{1}-\frac{13}{8}}-\left(-\frac{11}{6}-\frac{\frac{2}{7}+1}{-\frac{5}{14}}+\frac{1}{30}\right)-\left(-\frac{1}{4}\right)
Divide 1 by 1 to get 1.
\frac{\frac{3}{4}+2}{\frac{3}{1}-\frac{13}{8}}-\left(-\frac{11}{6}-\frac{\frac{2}{7}+1}{-\frac{5}{14}}+\frac{1}{30}\right)-\left(-\frac{1}{4}\right)
Anything divided by one gives itself.
\frac{\frac{3}{4}+\frac{8}{4}}{\frac{3}{1}-\frac{13}{8}}-\left(-\frac{11}{6}-\frac{\frac{2}{7}+1}{-\frac{5}{14}}+\frac{1}{30}\right)-\left(-\frac{1}{4}\right)
Convert 2 to fraction \frac{8}{4}.
\frac{\frac{3+8}{4}}{\frac{3}{1}-\frac{13}{8}}-\left(-\frac{11}{6}-\frac{\frac{2}{7}+1}{-\frac{5}{14}}+\frac{1}{30}\right)-\left(-\frac{1}{4}\right)
Since \frac{3}{4} and \frac{8}{4} have the same denominator, add them by adding their numerators.
\frac{\frac{11}{4}}{\frac{3}{1}-\frac{13}{8}}-\left(-\frac{11}{6}-\frac{\frac{2}{7}+1}{-\frac{5}{14}}+\frac{1}{30}\right)-\left(-\frac{1}{4}\right)
Add 3 and 8 to get 11.
\frac{\frac{11}{4}}{3-\frac{13}{8}}-\left(-\frac{11}{6}-\frac{\frac{2}{7}+1}{-\frac{5}{14}}+\frac{1}{30}\right)-\left(-\frac{1}{4}\right)
Anything divided by one gives itself.
\frac{\frac{11}{4}}{\frac{24}{8}-\frac{13}{8}}-\left(-\frac{11}{6}-\frac{\frac{2}{7}+1}{-\frac{5}{14}}+\frac{1}{30}\right)-\left(-\frac{1}{4}\right)
Convert 3 to fraction \frac{24}{8}.
\frac{\frac{11}{4}}{\frac{24-13}{8}}-\left(-\frac{11}{6}-\frac{\frac{2}{7}+1}{-\frac{5}{14}}+\frac{1}{30}\right)-\left(-\frac{1}{4}\right)
Since \frac{24}{8} and \frac{13}{8} have the same denominator, subtract them by subtracting their numerators.
\frac{\frac{11}{4}}{\frac{11}{8}}-\left(-\frac{11}{6}-\frac{\frac{2}{7}+1}{-\frac{5}{14}}+\frac{1}{30}\right)-\left(-\frac{1}{4}\right)
Subtract 13 from 24 to get 11.
\frac{11}{4}\times \frac{8}{11}-\left(-\frac{11}{6}-\frac{\frac{2}{7}+1}{-\frac{5}{14}}+\frac{1}{30}\right)-\left(-\frac{1}{4}\right)
Divide \frac{11}{4} by \frac{11}{8} by multiplying \frac{11}{4} by the reciprocal of \frac{11}{8}.
\frac{11\times 8}{4\times 11}-\left(-\frac{11}{6}-\frac{\frac{2}{7}+1}{-\frac{5}{14}}+\frac{1}{30}\right)-\left(-\frac{1}{4}\right)
Multiply \frac{11}{4} times \frac{8}{11} by multiplying numerator times numerator and denominator times denominator.
\frac{8}{4}-\left(-\frac{11}{6}-\frac{\frac{2}{7}+1}{-\frac{5}{14}}+\frac{1}{30}\right)-\left(-\frac{1}{4}\right)
Cancel out 11 in both numerator and denominator.
2-\left(-\frac{11}{6}-\frac{\frac{2}{7}+1}{-\frac{5}{14}}+\frac{1}{30}\right)-\left(-\frac{1}{4}\right)
Divide 8 by 4 to get 2.
2-\left(-\frac{11}{6}-\frac{\frac{2}{7}+\frac{7}{7}}{-\frac{5}{14}}+\frac{1}{30}\right)-\left(-\frac{1}{4}\right)
Convert 1 to fraction \frac{7}{7}.
2-\left(-\frac{11}{6}-\frac{\frac{2+7}{7}}{-\frac{5}{14}}+\frac{1}{30}\right)-\left(-\frac{1}{4}\right)
Since \frac{2}{7} and \frac{7}{7} have the same denominator, add them by adding their numerators.
2-\left(-\frac{11}{6}-\frac{\frac{9}{7}}{-\frac{5}{14}}+\frac{1}{30}\right)-\left(-\frac{1}{4}\right)
Add 2 and 7 to get 9.
2-\left(-\frac{11}{6}-\frac{9}{7}\left(-\frac{14}{5}\right)+\frac{1}{30}\right)-\left(-\frac{1}{4}\right)
Divide \frac{9}{7} by -\frac{5}{14} by multiplying \frac{9}{7} by the reciprocal of -\frac{5}{14}.
2-\left(-\frac{11}{6}-\frac{9\left(-14\right)}{7\times 5}+\frac{1}{30}\right)-\left(-\frac{1}{4}\right)
Multiply \frac{9}{7} times -\frac{14}{5} by multiplying numerator times numerator and denominator times denominator.
2-\left(-\frac{11}{6}-\frac{-126}{35}+\frac{1}{30}\right)-\left(-\frac{1}{4}\right)
Do the multiplications in the fraction \frac{9\left(-14\right)}{7\times 5}.
2-\left(-\frac{11}{6}-\left(-\frac{18}{5}\right)+\frac{1}{30}\right)-\left(-\frac{1}{4}\right)
Reduce the fraction \frac{-126}{35} to lowest terms by extracting and canceling out 7.
2-\left(-\frac{11}{6}+\frac{18}{5}+\frac{1}{30}\right)-\left(-\frac{1}{4}\right)
The opposite of -\frac{18}{5} is \frac{18}{5}.
2-\left(-\frac{55}{30}+\frac{108}{30}+\frac{1}{30}\right)-\left(-\frac{1}{4}\right)
Least common multiple of 6 and 5 is 30. Convert -\frac{11}{6} and \frac{18}{5} to fractions with denominator 30.
2-\left(\frac{-55+108}{30}+\frac{1}{30}\right)-\left(-\frac{1}{4}\right)
Since -\frac{55}{30} and \frac{108}{30} have the same denominator, add them by adding their numerators.
2-\left(\frac{53}{30}+\frac{1}{30}\right)-\left(-\frac{1}{4}\right)
Add -55 and 108 to get 53.
2-\frac{53+1}{30}-\left(-\frac{1}{4}\right)
Since \frac{53}{30} and \frac{1}{30} have the same denominator, add them by adding their numerators.
2-\frac{54}{30}-\left(-\frac{1}{4}\right)
Add 53 and 1 to get 54.
2-\frac{9}{5}-\left(-\frac{1}{4}\right)
Reduce the fraction \frac{54}{30} to lowest terms by extracting and canceling out 6.
\frac{10}{5}-\frac{9}{5}-\left(-\frac{1}{4}\right)
Convert 2 to fraction \frac{10}{5}.
\frac{10-9}{5}-\left(-\frac{1}{4}\right)
Since \frac{10}{5} and \frac{9}{5} have the same denominator, subtract them by subtracting their numerators.
\frac{1}{5}-\left(-\frac{1}{4}\right)
Subtract 9 from 10 to get 1.
\frac{1}{5}+\frac{1}{4}
The opposite of -\frac{1}{4} is \frac{1}{4}.
\frac{4}{20}+\frac{5}{20}
Least common multiple of 5 and 4 is 20. Convert \frac{1}{5} and \frac{1}{4} to fractions with denominator 20.
\frac{4+5}{20}
Since \frac{4}{20} and \frac{5}{20} have the same denominator, add them by adding their numerators.
\frac{9}{20}
Add 4 and 5 to get 9.
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}