Step 1:
The first step to converting 11309.987180366 to a fraction is to re-write 11309.987180366 in the form p/q where p and q are both positive integers. To start with, 11309.987180366 can be written as simply 11309.987180366/1 to technically be written as a fraction.
Step 2:
Next, we will count the number of fractional digits after the decimal point in 11309.987180366, which in this case is 9. For however many digits after the decimal point there are, we will multiply the numerator and denominator of 11309.987180366/1 each by 10 to the power of that many digits. So, in this case, we will multiply the numerator and denominator of 11309.987180366/1 each by 1000000000:
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 11309.987180366 as a fraction:
882179/78 / 1