Step 1:
The first step to converting 173215224.57439 to a fraction is to re-write 173215224.57439 in the form p/q where p and q are both positive integers. To start with, 173215224.57439 can be written as simply 173215224.57439/1 to technically be written as a fraction.
Step 2:
Next, we will count the number of fractional digits after the decimal point in 173215224.57439, which in this case is 5. For however many digits after the decimal point there are, we will multiply the numerator and denominator of 173215224.57439/1 each by 10 to the power of that many digits. So, in this case, we will multiply the numerator and denominator of 173215224.57439/1 each by 100000:
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 173215224.57439 as a fraction:
173215224/1 / 1