Simplify the Fraction: Converting 12/300 to Its Simplest Form

First we will divide both the numerator and denominator by 3 to get 100 in the denominator:

$\frac{12:3}{300:3}=\frac{4}{100}$

Now we'll rewrite the simple fraction as a decimal fraction:

$4.0$

Since the fraction divides by 100, we'll move the decimal point two places to the left:

$.040$

Now we will add the zero before the decimal point to get:

$0.040=0.04$