Step 1:
The first step to converting 25609.778828012 to a fraction is to re-write 25609.778828012 in the form p/q where p and q are both positive integers. To start with, 25609.778828012 can be written as simply 25609.778828012/1 to technically be written as a fraction.
Step 2:
Next, we will count the number of fractional digits after the decimal point in 25609.778828012, which in this case is 9. For however many digits after the decimal point there are, we will multiply the numerator and denominator of 25609.778828012/1 each by 10 to the power of that many digits. So, in this case, we will multiply the numerator and denominator of 25609.778828012/1 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 25609.778828012 as a fraction:
128049/5 / 1