Evaluate
\frac{31}{18}\approx 1.722222222
Factor
\frac{31}{2 \cdot 3 ^ {2}} = 1\frac{13}{18} = 1.7222222222222223
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\frac{4}{18}+\frac{27}{18}
Least common multiple of 9 and 2 is 18. Convert \frac{2}{9} and \frac{3}{2} to fractions with denominator 18.
\frac{4+27}{18}
Since \frac{4}{18} and \frac{27}{18} have the same denominator, add them by adding their numerators.
\frac{31}{18}
Add 4 and 27 to get 31.
Examples
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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
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