Evaluate
\frac{34}{5}=6.8
Factor
\frac{2 \cdot 17}{5} = 6\frac{4}{5} = 6.8
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3\left(\frac{20+3}{5}-2\right)-1
Multiply 4 and 5 to get 20.
3\left(\frac{23}{5}-2\right)-1
Add 20 and 3 to get 23.
3\left(\frac{23}{5}-\frac{10}{5}\right)-1
Convert 2 to fraction \frac{10}{5}.
3\times \frac{23-10}{5}-1
Since \frac{23}{5} and \frac{10}{5} have the same denominator, subtract them by subtracting their numerators.
3\times \frac{13}{5}-1
Subtract 10 from 23 to get 13.
\frac{3\times 13}{5}-1
Express 3\times \frac{13}{5} as a single fraction.
\frac{39}{5}-1
Multiply 3 and 13 to get 39.
\frac{39}{5}-\frac{5}{5}
Convert 1 to fraction \frac{5}{5}.
\frac{39-5}{5}
Since \frac{39}{5} and \frac{5}{5} have the same denominator, subtract them by subtracting their numerators.
\frac{34}{5}
Subtract 5 from 39 to get 34.
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}