Evaluate
\frac{18}{5}=3.6
Factor
\frac{2 \cdot 3 ^ {2}}{5} = 3\frac{3}{5} = 3.6
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\left(\left(\frac{15}{10}-\frac{2}{10}\right)\times 5-\frac{1}{10}\right)\times \frac{3}{4}-\frac{6}{5}
Least common multiple of 2 and 5 is 10. Convert \frac{3}{2} and \frac{1}{5} to fractions with denominator 10.
\left(\frac{15-2}{10}\times 5-\frac{1}{10}\right)\times \frac{3}{4}-\frac{6}{5}
Since \frac{15}{10} and \frac{2}{10} have the same denominator, subtract them by subtracting their numerators.
\left(\frac{13}{10}\times 5-\frac{1}{10}\right)\times \frac{3}{4}-\frac{6}{5}
Subtract 2 from 15 to get 13.
\left(\frac{13\times 5}{10}-\frac{1}{10}\right)\times \frac{3}{4}-\frac{6}{5}
Express \frac{13}{10}\times 5 as a single fraction.
\left(\frac{65}{10}-\frac{1}{10}\right)\times \frac{3}{4}-\frac{6}{5}
Multiply 13 and 5 to get 65.
\frac{65-1}{10}\times \frac{3}{4}-\frac{6}{5}
Since \frac{65}{10} and \frac{1}{10} have the same denominator, subtract them by subtracting their numerators.
\frac{64}{10}\times \frac{3}{4}-\frac{6}{5}
Subtract 1 from 65 to get 64.
\frac{32}{5}\times \frac{3}{4}-\frac{6}{5}
Reduce the fraction \frac{64}{10} to lowest terms by extracting and canceling out 2.
\frac{32\times 3}{5\times 4}-\frac{6}{5}
Multiply \frac{32}{5} times \frac{3}{4} by multiplying numerator times numerator and denominator times denominator.
\frac{96}{20}-\frac{6}{5}
Do the multiplications in the fraction \frac{32\times 3}{5\times 4}.
\frac{24}{5}-\frac{6}{5}
Reduce the fraction \frac{96}{20} to lowest terms by extracting and canceling out 4.
\frac{24-6}{5}
Since \frac{24}{5} and \frac{6}{5} have the same denominator, subtract them by subtracting their numerators.
\frac{18}{5}
Subtract 6 from 24 to get 18.
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}