Step 1:
The first step to converting 22209.520457538 to a fraction is to re-write 22209.520457538 in the form p/q where p and q are both positive integers. To start with, 22209.520457538 can be written as simply 22209.520457538/1 to technically be written as a fraction.
Step 2:
Next, we will count the number of fractional digits after the decimal point in 22209.520457538, which in this case is 9. For however many digits after the decimal point there are, we will multiply the numerator and denominator of 22209.520457538/1 each by 10 to the power of that many digits. So, in this case, we will multiply the numerator and denominator of 22209.520457538/1 each by 1000000000:
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 22209.520457538 as a fraction:
44419/2 / 1