Step 1:
The first step to converting 420648 to a fraction is to re-write 420648 in the form p/q where p and q are both positive integers. To start with, 420648 can be written as simply 420648/1 to technically be written as a fraction.
Step 2:
Next, we will count the number of fractional digits after the decimal point in 420648, which in this case is 0. For however many digits after the decimal point there are, we will multiply the numerator and denominator of 420648/1 each by 10 to the power of that many digits. So, in this case, we will multiply the numerator and denominator of 420648/1 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 420648 as a fraction:
420648/1 / 1