Evaluate
\frac{14}{5}=2.8
Factor
\frac{2 \cdot 7}{5} = 2\frac{4}{5} = 2.8
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\frac{2\times 3}{3\times 5}-\frac{3}{5}\times \frac{1}{6}+\frac{5}{2}
Multiply \frac{2}{3} times \frac{3}{5} by multiplying numerator times numerator and denominator times denominator.
\frac{2}{5}-\frac{3}{5}\times \frac{1}{6}+\frac{5}{2}
Cancel out 3 in both numerator and denominator.
\frac{2}{5}-\frac{3\times 1}{5\times 6}+\frac{5}{2}
Multiply \frac{3}{5} times \frac{1}{6} by multiplying numerator times numerator and denominator times denominator.
\frac{2}{5}-\frac{3}{30}+\frac{5}{2}
Do the multiplications in the fraction \frac{3\times 1}{5\times 6}.
\frac{2}{5}-\frac{1}{10}+\frac{5}{2}
Reduce the fraction \frac{3}{30} to lowest terms by extracting and canceling out 3.
\frac{4}{10}-\frac{1}{10}+\frac{5}{2}
Least common multiple of 5 and 10 is 10. Convert \frac{2}{5} and \frac{1}{10} to fractions with denominator 10.
\frac{4-1}{10}+\frac{5}{2}
Since \frac{4}{10} and \frac{1}{10} have the same denominator, subtract them by subtracting their numerators.
\frac{3}{10}+\frac{5}{2}
Subtract 1 from 4 to get 3.
\frac{3}{10}+\frac{25}{10}
Least common multiple of 10 and 2 is 10. Convert \frac{3}{10} and \frac{5}{2} to fractions with denominator 10.
\frac{3+25}{10}
Since \frac{3}{10} and \frac{25}{10} have the same denominator, add them by adding their numerators.
\frac{28}{10}
Add 3 and 25 to get 28.
\frac{14}{5}
Reduce the fraction \frac{28}{10} to lowest terms by extracting and canceling out 2.
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}