Step 1:
The first step to converting 85944.099596459 to a fraction is to re-write 85944.099596459 in the form p/q where p and q are both positive integers. To start with, 85944.099596459 can be written as simply 85944.099596459/1 to technically be written as a fraction.
Step 2:
Next, we will count the number of fractional digits after the decimal point in 85944.099596459, which in this case is 9. For however many digits after the decimal point there are, we will multiply the numerator and denominator of 85944.099596459/1 each by 10 to the power of that many digits. So, in this case, we will multiply the numerator and denominator of 85944.099596459/1 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 85944.099596459 as a fraction:
859441/10 / 1