Step 1:
The first step to converting 518598.78188792 to a fraction is to re-write 518598.78188792 in the form p/q where p and q are both positive integers. To start with, 518598.78188792 can be written as simply 518598.78188792/1 to technically be written as a fraction.
Step 2:
Next, we will count the number of fractional digits after the decimal point in 518598.78188792, which in this case is 8. For however many digits after the decimal point there are, we will multiply the numerator and denominator of 518598.78188792/1 each by 10 to the power of that many digits. So, in this case, we will multiply the numerator and denominator of 518598.78188792/1 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 518598.78188792 as a fraction:
518599/1 / 1