Step 1:
The first step to converting 16429.855579948 to a fraction is to re-write 16429.855579948 in the form p/q where p and q are both positive integers. To start with, 16429.855579948 can be written as simply 16429.855579948/1 to technically be written as a fraction.
Step 2:
Next, we will count the number of fractional digits after the decimal point in 16429.855579948, which in this case is 9. For however many digits after the decimal point there are, we will multiply the numerator and denominator of 16429.855579948/1 each by 10 to the power of that many digits. So, in this case, we will multiply the numerator and denominator of 16429.855579948/1 each by 1000000000:
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 16429.855579948 as a fraction:
115009/7 / 1