Step 1:
The first step to converting 623670.42569642 to a fraction is to re-write 623670.42569642 in the form p/q where p and q are both positive integers. To start with, 623670.42569642 can be written as simply 623670.42569642/1 to technically be written as a fraction.
Step 2:
Next, we will count the number of fractional digits after the decimal point in 623670.42569642, which in this case is 8. For however many digits after the decimal point there are, we will multiply the numerator and denominator of 623670.42569642/1 each by 10 to the power of that many digits. So, in this case, we will multiply the numerator and denominator of 623670.42569642/1 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 623670.42569642 as a fraction:
623670/1 / 1