Convert mixed number to fraction.
$$\dfrac{ 28 }{ 100 }$$ .Simplify $ \dfrac{ 28 }{ 100 } $ by dividing both 28 and 100 by their GCD, which is 4. GCD(28, 100) = 4.
$$ \frac{ 28 }{ 100 } = \frac{ 28 : \color{blue}{ 4 } }{ 100 : \color{blue}{ 4 } } = \frac{ 7 }{ 25 } $$