Step 1:
The first step to converting 8208.721689453 to a fraction is to re-write 8208.721689453 in the form p/q where p and q are both positive integers. To start with, 8208.721689453 can be written as simply 8208.721689453/1 to technically be written as a fraction.
Step 2:
Next, we will count the number of fractional digits after the decimal point in 8208.721689453, which in this case is 9. For however many digits after the decimal point there are, we will multiply the numerator and denominator of 8208.721689453/1 each by 10 to the power of that many digits. So, in this case, we will multiply the numerator and denominator of 8208.721689453/1 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 8208.721689453 as a fraction:
57461/7 / 1