Step 1:
The first step to converting 12038.228421909 to a fraction is to re-write 12038.228421909 in the form p/q where p and q are both positive integers. To start with, 12038.228421909 can be written as simply 12038.228421909/1 to technically be written as a fraction.
Step 2:
Next, we will count the number of fractional digits after the decimal point in 12038.228421909, which in this case is 9. For however many digits after the decimal point there are, we will multiply the numerator and denominator of 12038.228421909/1 each by 10 to the power of that many digits. So, in this case, we will multiply the numerator and denominator of 12038.228421909/1 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 12038.228421909 as a fraction:
108344/9 / 1