Step 1:
The first step to converting 54789.12164999 to a fraction is to re-write 54789.12164999 in the form p/q where p and q are both positive integers. To start with, 54789.12164999 can be written as simply 54789.12164999/1 to technically be written as a fraction.
Step 2:
Next, we will count the number of fractional digits after the decimal point in 54789.12164999, which in this case is 8. For however many digits after the decimal point there are, we will multiply the numerator and denominator of 54789.12164999/1 each by 10 to the power of that many digits. So, in this case, we will multiply the numerator and denominator of 54789.12164999/1 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 54789.12164999 as a fraction:
438313/8 / 1