Step 1:
The first step to converting 172548.216174 to a fraction is to re-write 172548.216174 in the form p/q where p and q are both positive integers. To start with, 172548.216174 can be written as simply 172548.216174/1 to technically be written as a fraction.
Step 2:
Next, we will count the number of fractional digits after the decimal point in 172548.216174, which in this case is 6. For however many digits after the decimal point there are, we will multiply the numerator and denominator of 172548.216174/1 each by 10 to the power of that many digits. So, in this case, we will multiply the numerator and denominator of 172548.216174/1 each by 1000000:
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 172548.216174 as a fraction:
690193/4 / 1