Convert mixed number to fraction.
$$\dfrac{ 42 }{ 12000 }$$ .Simplify $ \dfrac{ 42 }{ 12000 } $ by dividing both 42 and 12000 by their GCD, which is 6. GCD(42, 12000) = 6.
$$ \frac{ 42 }{ 12000 } = \frac{ 42 : \color{blue}{ 6 } }{ 12000 : \color{blue}{ 6 } } = \frac{ 7 }{ 2000 } $$