Step 1:
The first step to converting 688164162.13632 to a fraction is to re-write 688164162.13632 in the form p/q where p and q are both positive integers. To start with, 688164162.13632 can be written as simply 688164162.13632/1 to technically be written as a fraction.
Step 2:
Next, we will count the number of fractional digits after the decimal point in 688164162.13632, which in this case is 5. For however many digits after the decimal point there are, we will multiply the numerator and denominator of 688164162.13632/1 each by 10 to the power of that many digits. So, in this case, we will multiply the numerator and denominator of 688164162.13632/1 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 688164162.13632 as a fraction:
688164162/1 / 1