Step 1:
The first step to converting 206191.21216078 to a fraction is to re-write 206191.21216078 in the form p/q where p and q are both positive integers. To start with, 206191.21216078 can be written as simply 206191.21216078/1 to technically be written as a fraction.
Step 2:
Next, we will count the number of fractional digits after the decimal point in 206191.21216078, which in this case is 8. For however many digits after the decimal point there are, we will multiply the numerator and denominator of 206191.21216078/1 each by 10 to the power of that many digits. So, in this case, we will multiply the numerator and denominator of 206191.21216078/1 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 206191.21216078 as a fraction:
824765/4 / 1