Step 1:
The first step to converting 432690.48581345 to a fraction is to re-write 432690.48581345 in the form p/q where p and q are both positive integers. To start with, 432690.48581345 can be written as simply 432690.48581345/1 to technically be written as a fraction.
Step 2:
Next, we will count the number of fractional digits after the decimal point in 432690.48581345, which in this case is 8. For however many digits after the decimal point there are, we will multiply the numerator and denominator of 432690.48581345/1 each by 10 to the power of that many digits. So, in this case, we will multiply the numerator and denominator of 432690.48581345/1 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 432690.48581345 as a fraction:
865381/2 / 1