Step 1:
The first step to converting 318409.85718745 to a fraction is to re-write 318409.85718745 in the form p/q where p and q are both positive integers. To start with, 318409.85718745 can be written as simply 318409.85718745/1 to technically be written as a fraction.
Step 2:
Next, we will count the number of fractional digits after the decimal point in 318409.85718745, which in this case is 8. For however many digits after the decimal point there are, we will multiply the numerator and denominator of 318409.85718745/1 each by 10 to the power of that many digits. So, in this case, we will multiply the numerator and denominator of 318409.85718745/1 each by 100000000:
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 318409.85718745 as a fraction:
318410/1 / 1