Convert mixed number to fraction.
$$\dfrac{ 9 }{ 72 }$$ .Simplify $ \dfrac{ 9 }{ 72 } $ by dividing both 9 and 72 by their GCD, which is 9. GCD(9, 72) = 9.
$$ \frac{ 9 }{ 72 } = \frac{ 9 : \color{blue}{ 9 } }{ 72 : \color{blue}{ 9 } } = \frac{ 1 }{ 8 } $$