Step 1:
The first step to converting 11479409589.489 to a fraction is to re-write 11479409589.489 in the form p/q where p and q are both positive integers. To start with, 11479409589.489 can be written as simply 11479409589.489/1 to technically be written as a fraction.
Step 2:
Next, we will count the number of fractional digits after the decimal point in 11479409589.489, which in this case is 3. For however many digits after the decimal point there are, we will multiply the numerator and denominator of 11479409589.489/1 each by 10 to the power of that many digits. So, in this case, we will multiply the numerator and denominator of 11479409589.489/1 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 11479409589.489 as a fraction:
11479409589/1 / 1