Step 1:
The first step to converting 121085998.21726 to a fraction is to re-write 121085998.21726 in the form p/q where p and q are both positive integers. To start with, 121085998.21726 can be written as simply 121085998.21726/1 to technically be written as a fraction.
Step 2:
Next, we will count the number of fractional digits after the decimal point in 121085998.21726, which in this case is 5. For however many digits after the decimal point there are, we will multiply the numerator and denominator of 121085998.21726/1 each by 10 to the power of that many digits. So, in this case, we will multiply the numerator and denominator of 121085998.21726/1 each by 100000:
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 121085998.21726 as a fraction:
121085998/1 / 1