Step 1:
The first step to converting 221298.6806336 to a fraction is to re-write 221298.6806336 in the form p/q where p and q are both positive integers. To start with, 221298.6806336 can be written as simply 221298.6806336/1 to technically be written as a fraction.
Step 2:
Next, we will count the number of fractional digits after the decimal point in 221298.6806336, which in this case is 7. For however many digits after the decimal point there are, we will multiply the numerator and denominator of 221298.6806336/1 each by 10 to the power of that many digits. So, in this case, we will multiply the numerator and denominator of 221298.6806336/1 each by 10000000:
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 221298.6806336 as a fraction:
663896/3 / 1