Evaluate
\frac{99}{5}=19.8
Factor
\frac{3 ^ {2} \cdot 11}{5} = 19\frac{4}{5} = 19.8
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\frac{100+4}{5}-1
Multiply 20 and 5 to get 100.
\frac{104}{5}-1
Add 100 and 4 to get 104.
\frac{104}{5}-\frac{5}{5}
Convert 1 to fraction \frac{5}{5}.
\frac{104-5}{5}
Since \frac{104}{5} and \frac{5}{5} have the same denominator, subtract them by subtracting their numerators.
\frac{99}{5}
Subtract 5 from 104 to get 99.
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y = 3x + 4
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Matrix
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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}