Step 1:
The first step to converting 1197891.79728 to a fraction is to re-write 1197891.79728 in the form p/q where p and q are both positive integers. To start with, 1197891.79728 can be written as simply 1197891.79728/1 to technically be written as a fraction.
Step 2:
Next, we will count the number of fractional digits after the decimal point in 1197891.79728, which in this case is 5. For however many digits after the decimal point there are, we will multiply the numerator and denominator of 1197891.79728/1 each by 10 to the power of that many digits. So, in this case, we will multiply the numerator and denominator of 1197891.79728/1 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 1197891.79728 as a fraction:
1197891/1 / 1