Step 1:
The first step to converting 400011.50386558 to a fraction is to re-write 400011.50386558 in the form p/q where p and q are both positive integers. To start with, 400011.50386558 can be written as simply 400011.50386558/1 to technically be written as a fraction.
Step 2:
Next, we will count the number of fractional digits after the decimal point in 400011.50386558, which in this case is 8. For however many digits after the decimal point there are, we will multiply the numerator and denominator of 400011.50386558/1 each by 10 to the power of that many digits. So, in this case, we will multiply the numerator and denominator of 400011.50386558/1 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 400011.50386558 as a fraction:
800023/2 / 1