Step 1:
The first step to converting 118129172.20888 to a fraction is to re-write 118129172.20888 in the form p/q where p and q are both positive integers. To start with, 118129172.20888 can be written as simply 118129172.20888/1 to technically be written as a fraction.
Step 2:
Next, we will count the number of fractional digits after the decimal point in 118129172.20888, which in this case is 5. For however many digits after the decimal point there are, we will multiply the numerator and denominator of 118129172.20888/1 each by 10 to the power of that many digits. So, in this case, we will multiply the numerator and denominator of 118129172.20888/1 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 118129172.20888 as a fraction:
118129172/1 / 1