Step 1:
The first step to converting 408011.3980419 to a fraction is to re-write 408011.3980419 in the form p/q where p and q are both positive integers. To start with, 408011.3980419 can be written as simply 408011.3980419/1 to technically be written as a fraction.
Step 2:
Next, we will count the number of fractional digits after the decimal point in 408011.3980419, which in this case is 7. For however many digits after the decimal point there are, we will multiply the numerator and denominator of 408011.3980419/1 each by 10 to the power of that many digits. So, in this case, we will multiply the numerator and denominator of 408011.3980419/1 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 408011.3980419 as a fraction:
408011/1 / 1