Step 1:
The first step to converting 686839.0321819 to a fraction is to re-write 686839.0321819 in the form p/q where p and q are both positive integers. To start with, 686839.0321819 can be written as simply 686839.0321819/1 to technically be written as a fraction.
Step 2:
Next, we will count the number of fractional digits after the decimal point in 686839.0321819, which in this case is 7. For however many digits after the decimal point there are, we will multiply the numerator and denominator of 686839.0321819/1 each by 10 to the power of that many digits. So, in this case, we will multiply the numerator and denominator of 686839.0321819/1 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 686839.0321819 as a fraction:
686839/1 / 1