Step 1:
The first step to converting 25509188.598437 to a fraction is to re-write 25509188.598437 in the form p/q where p and q are both positive integers. To start with, 25509188.598437 can be written as simply 25509188.598437/1 to technically be written as a fraction.
Step 2:
Next, we will count the number of fractional digits after the decimal point in 25509188.598437, which in this case is 6. For however many digits after the decimal point there are, we will multiply the numerator and denominator of 25509188.598437/1 each by 10 to the power of that many digits. So, in this case, we will multiply the numerator and denominator of 25509188.598437/1 each by 1000000:
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 25509188.598437 as a fraction:
25509188/1 / 1