Step 1:
The first step to converting 728775.2129005 to a fraction is to re-write 728775.2129005 in the form p/q where p and q are both positive integers. To start with, 728775.2129005 can be written as simply 728775.2129005/1 to technically be written as a fraction.
Step 2:
Next, we will count the number of fractional digits after the decimal point in 728775.2129005, which in this case is 7. For however many digits after the decimal point there are, we will multiply the numerator and denominator of 728775.2129005/1 each by 10 to the power of that many digits. So, in this case, we will multiply the numerator and denominator of 728775.2129005/1 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 728775.2129005 as a fraction:
728775/1 / 1