Step 1:
The first step to converting 707991.9980934 to a fraction is to re-write 707991.9980934 in the form p/q where p and q are both positive integers. To start with, 707991.9980934 can be written as simply 707991.9980934/1 to technically be written as a fraction.
Step 2:
Next, we will count the number of fractional digits after the decimal point in 707991.9980934, which in this case is 7. For however many digits after the decimal point there are, we will multiply the numerator and denominator of 707991.9980934/1 each by 10 to the power of that many digits. So, in this case, we will multiply the numerator and denominator of 707991.9980934/1 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 707991.9980934 as a fraction:
707992/1 / 1