Step 1:
The first step to converting 197821.54027001 to a fraction is to re-write 197821.54027001 in the form p/q where p and q are both positive integers. To start with, 197821.54027001 can be written as simply 197821.54027001/1 to technically be written as a fraction.
Step 2:
Next, we will count the number of fractional digits after the decimal point in 197821.54027001, which in this case is 8. For however many digits after the decimal point there are, we will multiply the numerator and denominator of 197821.54027001/1 each by 10 to the power of that many digits. So, in this case, we will multiply the numerator and denominator of 197821.54027001/1 each by 100000000:
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 197821.54027001 as a fraction:
395643/2 / 1