Step 1:
The first step to converting 696.78218868378 to a fraction is to re-write 696.78218868378 in the form p/q where p and q are both positive integers. To start with, 696.78218868378 can be written as simply 696.78218868378/1 to technically be written as a fraction.
Step 2:
Next, we will count the number of fractional digits after the decimal point in 696.78218868378, which in this case is 11. For however many digits after the decimal point there are, we will multiply the numerator and denominator of 696.78218868378/1 each by 10 to the power of that many digits. So, in this case, we will multiply the numerator and denominator of 696.78218868378/1 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 696.78218868378 as a fraction:
16026/23 / 1