Step 1:
The first step to converting 120920.7868509 to a fraction is to re-write 120920.7868509 in the form p/q where p and q are both positive integers. To start with, 120920.7868509 can be written as simply 120920.7868509/1 to technically be written as a fraction.
Step 2:
Next, we will count the number of fractional digits after the decimal point in 120920.7868509, which in this case is 7. For however many digits after the decimal point there are, we will multiply the numerator and denominator of 120920.7868509/1 each by 10 to the power of that many digits. So, in this case, we will multiply the numerator and denominator of 120920.7868509/1 each by 10000000:
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 120920.7868509 as a fraction:
483683/4 / 1