Step 1:
The first step to converting 431099.42077259 to a fraction is to re-write 431099.42077259 in the form p/q where p and q are both positive integers. To start with, 431099.42077259 can be written as simply 431099.42077259/1 to technically be written as a fraction.
Step 2:
Next, we will count the number of fractional digits after the decimal point in 431099.42077259, which in this case is 8. For however many digits after the decimal point there are, we will multiply the numerator and denominator of 431099.42077259/1 each by 10 to the power of that many digits. So, in this case, we will multiply the numerator and denominator of 431099.42077259/1 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 431099.42077259 as a fraction:
431099/1 / 1