Step 1:
The first step to converting 100116518.2089 to a fraction is to re-write 100116518.2089 in the form p/q where p and q are both positive integers. To start with, 100116518.2089 can be written as simply 100116518.2089/1 to technically be written as a fraction.
Step 2:
Next, we will count the number of fractional digits after the decimal point in 100116518.2089, which in this case is 4. For however many digits after the decimal point there are, we will multiply the numerator and denominator of 100116518.2089/1 each by 10 to the power of that many digits. So, in this case, we will multiply the numerator and denominator of 100116518.2089/1 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 100116518.2089 as a fraction:
100116518/1 / 1