Step 1:
The first step to converting 15922.709999899 to a fraction is to re-write 15922.709999899 in the form p/q where p and q are both positive integers. To start with, 15922.709999899 can be written as simply 15922.709999899/1 to technically be written as a fraction.
Step 2:
Next, we will count the number of fractional digits after the decimal point in 15922.709999899, which in this case is 9. For however many digits after the decimal point there are, we will multiply the numerator and denominator of 15922.709999899/1 each by 10 to the power of that many digits. So, in this case, we will multiply the numerator and denominator of 15922.709999899/1 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 15922.709999899 as a fraction:
111459/7 / 1