Step 1:
The first step to converting 17983.399400827 to a fraction is to re-write 17983.399400827 in the form p/q where p and q are both positive integers. To start with, 17983.399400827 can be written as simply 17983.399400827/1 to technically be written as a fraction.
Step 2:
Next, we will count the number of fractional digits after the decimal point in 17983.399400827, which in this case is 9. For however many digits after the decimal point there are, we will multiply the numerator and denominator of 17983.399400827/1 each by 10 to the power of that many digits. So, in this case, we will multiply the numerator and denominator of 17983.399400827/1 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 17983.399400827 as a fraction:
89917/5 / 1