Step 1:
The first step to converting 31799.485171838 to a fraction is to re-write 31799.485171838 in the form p/q where p and q are both positive integers. To start with, 31799.485171838 can be written as simply 31799.485171838/1 to technically be written as a fraction.
Step 2:
Next, we will count the number of fractional digits after the decimal point in 31799.485171838, which in this case is 9. For however many digits after the decimal point there are, we will multiply the numerator and denominator of 31799.485171838/1 each by 10 to the power of that many digits. So, in this case, we will multiply the numerator and denominator of 31799.485171838/1 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 31799.485171838 as a fraction:
63599/2 / 1