Step 1:
The first step to converting 122807216.3999 to a fraction is to re-write 122807216.3999 in the form p/q where p and q are both positive integers. To start with, 122807216.3999 can be written as simply 122807216.3999/1 to technically be written as a fraction.
Step 2:
Next, we will count the number of fractional digits after the decimal point in 122807216.3999, which in this case is 4. For however many digits after the decimal point there are, we will multiply the numerator and denominator of 122807216.3999/1 each by 10 to the power of that many digits. So, in this case, we will multiply the numerator and denominator of 122807216.3999/1 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 122807216.3999 as a fraction:
122807216/1 / 1