Step 1:
The first step to converting 321759.51304521 to a fraction is to re-write 321759.51304521 in the form p/q where p and q are both positive integers. To start with, 321759.51304521 can be written as simply 321759.51304521/1 to technically be written as a fraction.
Step 2:
Next, we will count the number of fractional digits after the decimal point in 321759.51304521, which in this case is 8. For however many digits after the decimal point there are, we will multiply the numerator and denominator of 321759.51304521/1 each by 10 to the power of that many digits. So, in this case, we will multiply the numerator and denominator of 321759.51304521/1 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 321759.51304521 as a fraction:
643519/2 / 1