\frac { 1,9 } { 3 } + \frac { 9 - 1 } { 4 } =
Evaluate
\frac{79}{30}\approx 2,633333333
Factor
\frac{79}{2 \cdot 3 \cdot 5} = 2\frac{19}{30} = 2.6333333333333333
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\frac{19}{30}+\frac{9-1}{4}
Expand \frac{1,9}{3} by multiplying both numerator and the denominator by 10.
\frac{19}{30}+\frac{8}{4}
Subtract 1 from 9 to get 8.
\frac{19}{30}+2
Divide 8 by 4 to get 2.
\frac{19}{30}+\frac{60}{30}
Convert 2 to fraction \frac{60}{30}.
\frac{19+60}{30}
Since \frac{19}{30} and \frac{60}{30} have the same denominator, add them by adding their numerators.
\frac{79}{30}
Add 19 and 60 to get 79.
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}