Step 1:
The first step to converting 15711.394921885 to a fraction is to re-write 15711.394921885 in the form p/q where p and q are both positive integers. To start with, 15711.394921885 can be written as simply 15711.394921885/1 to technically be written as a fraction.
Step 2:
Next, we will count the number of fractional digits after the decimal point in 15711.394921885, which in this case is 9. For however many digits after the decimal point there are, we will multiply the numerator and denominator of 15711.394921885/1 each by 10 to the power of that many digits. So, in this case, we will multiply the numerator and denominator of 15711.394921885/1 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 15711.394921885 as a fraction:
78557/5 / 1