Step 1:
The first step to converting 622553.9905863 to a fraction is to re-write 622553.9905863 in the form p/q where p and q are both positive integers. To start with, 622553.9905863 can be written as simply 622553.9905863/1 to technically be written as a fraction.
Step 2:
Next, we will count the number of fractional digits after the decimal point in 622553.9905863, which in this case is 7. For however many digits after the decimal point there are, we will multiply the numerator and denominator of 622553.9905863/1 each by 10 to the power of that many digits. So, in this case, we will multiply the numerator and denominator of 622553.9905863/1 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 622553.9905863 as a fraction:
622554/1 / 1