Step 1:
The first step to converting 259412.87398659 to a fraction is to re-write 259412.87398659 in the form p/q where p and q are both positive integers. To start with, 259412.87398659 can be written as simply 259412.87398659/1 to technically be written as a fraction.
Step 2:
Next, we will count the number of fractional digits after the decimal point in 259412.87398659, which in this case is 8. For however many digits after the decimal point there are, we will multiply the numerator and denominator of 259412.87398659/1 each by 10 to the power of that many digits. So, in this case, we will multiply the numerator and denominator of 259412.87398659/1 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 259412.87398659 as a fraction:
259413/1 / 1