Convert mixed number to fraction.
$$\dfrac{ 216 }{ 9990 }$$ .Simplify $ \dfrac{ 216 }{ 9990 } $ by dividing both 216 and 9990 by their GCD, which is 54. GCD(216, 9990) = 54.
$$ \frac{ 216 }{ 9990 } = \frac{ 216 : \color{blue}{ 54 } }{ 9990 : \color{blue}{ 54 } } = \frac{ 4 }{ 185 } $$