Step 1:
The first step to converting 85679.707099528 to a fraction is to re-write 85679.707099528 in the form p/q where p and q are both positive integers. To start with, 85679.707099528 can be written as simply 85679.707099528/1 to technically be written as a fraction.
Step 2:
Next, we will count the number of fractional digits after the decimal point in 85679.707099528, which in this case is 9. For however many digits after the decimal point there are, we will multiply the numerator and denominator of 85679.707099528/1 each by 10 to the power of that many digits. So, in this case, we will multiply the numerator and denominator of 85679.707099528/1 each by 1000000000:
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 85679.707099528 as a fraction:
257039/3 / 1