Convert mixed number to fraction.
$$\dfrac{ 18 }{ 8 }$$ .Simplify $ \dfrac{ 18 }{ 8 } $ by dividing both 18 and 8 by their GCD, which is 2. GCD(18, 8) = 2.
$$ \frac{ 18 }{ 8 } = \frac{ 18 : \color{blue}{ 2 } }{ 8 : \color{blue}{ 2 } } = \frac{ 9 }{ 4 } $$