Step 1:
The first step to converting 165220414.7439 to a fraction is to re-write 165220414.7439 in the form p/q where p and q are both positive integers. To start with, 165220414.7439 can be written as simply 165220414.7439/1 to technically be written as a fraction.
Step 2:
Next, we will count the number of fractional digits after the decimal point in 165220414.7439, which in this case is 4. For however many digits after the decimal point there are, we will multiply the numerator and denominator of 165220414.7439/1 each by 10 to the power of that many digits. So, in this case, we will multiply the numerator and denominator of 165220414.7439/1 each by 10000:
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 165220414.7439 as a fraction:
165220414/1 / 1