Step 1:
The first step to converting 321132.4076729 to a fraction is to re-write 321132.4076729 in the form p/q where p and q are both positive integers. To start with, 321132.4076729 can be written as simply 321132.4076729/1 to technically be written as a fraction.
Step 2:
Next, we will count the number of fractional digits after the decimal point in 321132.4076729, which in this case is 7. For however many digits after the decimal point there are, we will multiply the numerator and denominator of 321132.4076729/1 each by 10 to the power of that many digits. So, in this case, we will multiply the numerator and denominator of 321132.4076729/1 each by 10000000:
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 321132.4076729 as a fraction:
642265/2 / 1