Step 1:
The first step to converting 18551.350898729 to a fraction is to re-write 18551.350898729 in the form p/q where p and q are both positive integers. To start with, 18551.350898729 can be written as simply 18551.350898729/1 to technically be written as a fraction.
Step 2:
Next, we will count the number of fractional digits after the decimal point in 18551.350898729, which in this case is 9. For however many digits after the decimal point there are, we will multiply the numerator and denominator of 18551.350898729/1 each by 10 to the power of that many digits. So, in this case, we will multiply the numerator and denominator of 18551.350898729/1 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 18551.350898729 as a fraction:
55654/3 / 1