Step 1:
The first step to converting 720122.17759431 to a fraction is to re-write 720122.17759431 in the form p/q where p and q are both positive integers. To start with, 720122.17759431 can be written as simply 720122.17759431/1 to technically be written as a fraction.
Step 2:
Next, we will count the number of fractional digits after the decimal point in 720122.17759431, which in this case is 8. For however many digits after the decimal point there are, we will multiply the numerator and denominator of 720122.17759431/1 each by 10 to the power of that many digits. So, in this case, we will multiply the numerator and denominator of 720122.17759431/1 each by 100000000:
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 720122.17759431 as a fraction:
720122/1 / 1