Step 1:
The first step to converting 638496 to a fraction is to re-write 638496 in the form p/q where p and q are both positive integers. To start with, 638496 can be written as simply 638496/1 to technically be written as a fraction.
Step 2:
Next, we will count the number of fractional digits after the decimal point in 638496, which in this case is 0. For however many digits after the decimal point there are, we will multiply the numerator and denominator of 638496/1 each by 10 to the power of that many digits. So, in this case, we will multiply the numerator and denominator of 638496/1 each by 1:
Step 3:
Now the last step is to simplify the fraction (if possible) by finding similar factors and cancelling them out, which leads to the following answer for 638496 as a fraction:
638496/1 / 1