Step 1:
The first step to converting 128249493.2196 to a fraction is to re-write 128249493.2196 in the form p/q where p and q are both positive integers. To start with, 128249493.2196 can be written as simply 128249493.2196/1 to technically be written as a fraction.
Step 2:
Next, we will count the number of fractional digits after the decimal point in 128249493.2196, which in this case is 4. For however many digits after the decimal point there are, we will multiply the numerator and denominator of 128249493.2196/1 each by 10 to the power of that many digits. So, in this case, we will multiply the numerator and denominator of 128249493.2196/1 each by 10000:
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 128249493.2196 as a fraction:
128249493/1 / 1