Step 1:
The first step to converting 489999776.64394 to a fraction is to re-write 489999776.64394 in the form p/q where p and q are both positive integers. To start with, 489999776.64394 can be written as simply 489999776.64394/1 to technically be written as a fraction.
Step 2:
Next, we will count the number of fractional digits after the decimal point in 489999776.64394, which in this case is 5. For however many digits after the decimal point there are, we will multiply the numerator and denominator of 489999776.64394/1 each by 10 to the power of that many digits. So, in this case, we will multiply the numerator and denominator of 489999776.64394/1 each by 100000:
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 489999776.64394 as a fraction:
489999776/1 / 1