Step 1:
The first step to converting 3995.2121385639 to a fraction is to re-write 3995.2121385639 in the form p/q where p and q are both positive integers. To start with, 3995.2121385639 can be written as simply 3995.2121385639/1 to technically be written as a fraction.
Step 2:
Next, we will count the number of fractional digits after the decimal point in 3995.2121385639, which in this case is 10. For however many digits after the decimal point there are, we will multiply the numerator and denominator of 3995.2121385639/1 each by 10 to the power of that many digits. So, in this case, we will multiply the numerator and denominator of 3995.2121385639/1 each by 10000000000:
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 3995.2121385639 as a fraction:
55933/14 / 1