Step 1:
The first step to converting 20000221.387505 to a fraction is to re-write 20000221.387505 in the form p/q where p and q are both positive integers. To start with, 20000221.387505 can be written as simply 20000221.387505/1 to technically be written as a fraction.
Step 2:
Next, we will count the number of fractional digits after the decimal point in 20000221.387505, which in this case is 6. For however many digits after the decimal point there are, we will multiply the numerator and denominator of 20000221.387505/1 each by 10 to the power of that many digits. So, in this case, we will multiply the numerator and denominator of 20000221.387505/1 each by 1000000:
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 20000221.387505 as a fraction:
20000221/1 / 1