Step 1:
The first step to converting 688748333.30624 to a fraction is to re-write 688748333.30624 in the form p/q where p and q are both positive integers. To start with, 688748333.30624 can be written as simply 688748333.30624/1 to technically be written as a fraction.
Step 2:
Next, we will count the number of fractional digits after the decimal point in 688748333.30624, which in this case is 5. For however many digits after the decimal point there are, we will multiply the numerator and denominator of 688748333.30624/1 each by 10 to the power of that many digits. So, in this case, we will multiply the numerator and denominator of 688748333.30624/1 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 688748333.30624 as a fraction:
688748333/1 / 1