Step 1:
The first step to converting 6422609.3640273 to a fraction is to re-write 6422609.3640273 in the form p/q where p and q are both positive integers. To start with, 6422609.3640273 can be written as simply 6422609.3640273/1 to technically be written as a fraction.
Step 2:
Next, we will count the number of fractional digits after the decimal point in 6422609.3640273, which in this case is 7. For however many digits after the decimal point there are, we will multiply the numerator and denominator of 6422609.3640273/1 each by 10 to the power of that many digits. So, in this case, we will multiply the numerator and denominator of 6422609.3640273/1 each by 10000000:
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 6422609.3640273 as a fraction:
6422609/1 / 1