In order to convert a fraction to a decimal number, we just need to divide the numerator by the denominator.
For example, for the fraction 1/4, we need to divide 1 by 4, so the result would be 0.25.
In the fraction 3/10, dividing 3 by 10, we have the result 0.3.
In the fraction 12/8, dividing 12 by 8, we have the result 1.5.
Some fractions don't correspond to a finite decimal number.
For example, the fraction 1/3 is equivalent to 0.333..., which has an infinite number of decimal places.