Step 1:
The first step to converting 221712640.72926 to a fraction is to re-write 221712640.72926 in the form p/q where p and q are both positive integers. To start with, 221712640.72926 can be written as simply 221712640.72926/1 to technically be written as a fraction.
Step 2:
Next, we will count the number of fractional digits after the decimal point in 221712640.72926, which in this case is 5. For however many digits after the decimal point there are, we will multiply the numerator and denominator of 221712640.72926/1 each by 10 to the power of that many digits. So, in this case, we will multiply the numerator and denominator of 221712640.72926/1 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 221712640.72926 as a fraction:
221712640/1 / 1