Evaluate
\frac{59}{4}=14.75
Factor
\frac{59}{2 ^ {2}} = 14\frac{3}{4} = 14.75
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20-\frac{7\times 3}{4}
Add 11 and 9 to get 20.
20-\frac{21}{4}
Multiply 7 and 3 to get 21.
\frac{80}{4}-\frac{21}{4}
Convert 20 to fraction \frac{80}{4}.
\frac{80-21}{4}
Since \frac{80}{4} and \frac{21}{4} have the same denominator, subtract them by subtracting their numerators.
\frac{59}{4}
Subtract 21 from 80 to get 59.
Examples
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{ 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}