Step 1:
The first step to converting 258639 to a fraction is to re-write 258639 in the form p/q where p and q are both positive integers. To start with, 258639 can be written as simply 258639/1 to technically be written as a fraction.
Step 2:
Next, we will count the number of fractional digits after the decimal point in 258639, which in this case is 0. For however many digits after the decimal point there are, we will multiply the numerator and denominator of 258639/1 each by 10 to the power of that many digits. So, in this case, we will multiply the numerator and denominator of 258639/1 each by 1:
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 258639 as a fraction:
258639/1 / 1