Step 1:
The first step to converting 296.78708431218 to a fraction is to re-write 296.78708431218 in the form p/q where p and q are both positive integers. To start with, 296.78708431218 can be written as simply 296.78708431218/1 to technically be written as a fraction.
Step 2:
Next, we will count the number of fractional digits after the decimal point in 296.78708431218, which in this case is 11. For however many digits after the decimal point there are, we will multiply the numerator and denominator of 296.78708431218/1 each by 10 to the power of that many digits. So, in this case, we will multiply the numerator and denominator of 296.78708431218/1 each by 100000000000:
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 296.78708431218 as a fraction:
13949/47 / 1