Step 1:
The first step to converting 128889.495 to a fraction is to re-write 128889.495 in the form p/q where p and q are both positive integers. To start with, 128889.495 can be written as simply 128889.495/1 to technically be written as a fraction.
Step 2:
Next, we will count the number of fractional digits after the decimal point in 128889.495, which in this case is 3. For however many digits after the decimal point there are, we will multiply the numerator and denominator of 128889.495/1 each by 10 to the power of that many digits. So, in this case, we will multiply the numerator and denominator of 128889.495/1 each by 1000:
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 128889.495 as a fraction:
257779/2 / 1