Step 1:
The first step to converting 9643.396621949 to a fraction is to re-write 9643.396621949 in the form p/q where p and q are both positive integers. To start with, 9643.396621949 can be written as simply 9643.396621949/1 to technically be written as a fraction.
Step 2:
Next, we will count the number of fractional digits after the decimal point in 9643.396621949, which in this case is 9. For however many digits after the decimal point there are, we will multiply the numerator and denominator of 9643.396621949/1 each by 10 to the power of that many digits. So, in this case, we will multiply the numerator and denominator of 9643.396621949/1 each by 1000000000:
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 9643.396621949 as a fraction:
48217/5 / 1