Step 1:
The first step to converting 409877.77447069 to a fraction is to re-write 409877.77447069 in the form p/q where p and q are both positive integers. To start with, 409877.77447069 can be written as simply 409877.77447069/1 to technically be written as a fraction.
Step 2:
Next, we will count the number of fractional digits after the decimal point in 409877.77447069, which in this case is 8. For however many digits after the decimal point there are, we will multiply the numerator and denominator of 409877.77447069/1 each by 10 to the power of that many digits. So, in this case, we will multiply the numerator and denominator of 409877.77447069/1 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 409877.77447069 as a fraction:
409878/1 / 1