Step 1:
The first step to converting 309719.49688647 to a fraction is to re-write 309719.49688647 in the form p/q where p and q are both positive integers. To start with, 309719.49688647 can be written as simply 309719.49688647/1 to technically be written as a fraction.
Step 2:
Next, we will count the number of fractional digits after the decimal point in 309719.49688647, which in this case is 8. For however many digits after the decimal point there are, we will multiply the numerator and denominator of 309719.49688647/1 each by 10 to the power of that many digits. So, in this case, we will multiply the numerator and denominator of 309719.49688647/1 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 309719.49688647 as a fraction:
619439/2 / 1