Step 1:
The first step to converting 787405.40401865 to a fraction is to re-write 787405.40401865 in the form p/q where p and q are both positive integers. To start with, 787405.40401865 can be written as simply 787405.40401865/1 to technically be written as a fraction.
Step 2:
Next, we will count the number of fractional digits after the decimal point in 787405.40401865, which in this case is 8. For however many digits after the decimal point there are, we will multiply the numerator and denominator of 787405.40401865/1 each by 10 to the power of that many digits. So, in this case, we will multiply the numerator and denominator of 787405.40401865/1 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 787405.40401865 as a fraction:
787405/1 / 1