Step 1:
The first step to converting 246.68400638009 to a fraction is to re-write 246.68400638009 in the form p/q where p and q are both positive integers. To start with, 246.68400638009 can be written as simply 246.68400638009/1 to technically be written as a fraction.
Step 2:
Next, we will count the number of fractional digits after the decimal point in 246.68400638009, which in this case is 11. For however many digits after the decimal point there are, we will multiply the numerator and denominator of 246.68400638009/1 each by 10 to the power of that many digits. So, in this case, we will multiply the numerator and denominator of 246.68400638009/1 each by 100000000000:
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 246.68400638009 as a fraction:
4687/19 / 1