Step 1:
The first step to converting 151721.35173591 to a fraction is to re-write 151721.35173591 in the form p/q where p and q are both positive integers. To start with, 151721.35173591 can be written as simply 151721.35173591/1 to technically be written as a fraction.
Step 2:
Next, we will count the number of fractional digits after the decimal point in 151721.35173591, which in this case is 8. For however many digits after the decimal point there are, we will multiply the numerator and denominator of 151721.35173591/1 each by 10 to the power of that many digits. So, in this case, we will multiply the numerator and denominator of 151721.35173591/1 each by 100000000:
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 151721.35173591 as a fraction:
303443/2 / 1