Step 1:
The first step to converting 686945.6680884 to a fraction is to re-write 686945.6680884 in the form p/q where p and q are both positive integers. To start with, 686945.6680884 can be written as simply 686945.6680884/1 to technically be written as a fraction.
Step 2:
Next, we will count the number of fractional digits after the decimal point in 686945.6680884, which in this case is 7. For however many digits after the decimal point there are, we will multiply the numerator and denominator of 686945.6680884/1 each by 10 to the power of that many digits. So, in this case, we will multiply the numerator and denominator of 686945.6680884/1 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 686945.6680884 as a fraction:
686945/1 / 1