Step 1:
The first step to converting 15837.387915977 to a fraction is to re-write 15837.387915977 in the form p/q where p and q are both positive integers. To start with, 15837.387915977 can be written as simply 15837.387915977/1 to technically be written as a fraction.
Step 2:
Next, we will count the number of fractional digits after the decimal point in 15837.387915977, which in this case is 9. For however many digits after the decimal point there are, we will multiply the numerator and denominator of 15837.387915977/1 each by 10 to the power of that many digits. So, in this case, we will multiply the numerator and denominator of 15837.387915977/1 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 15837.387915977 as a fraction:
79187/5 / 1