Step 1:
The first step to converting 220820.51077451 to a fraction is to re-write 220820.51077451 in the form p/q where p and q are both positive integers. To start with, 220820.51077451 can be written as simply 220820.51077451/1 to technically be written as a fraction.
Step 2:
Next, we will count the number of fractional digits after the decimal point in 220820.51077451, which in this case is 8. For however many digits after the decimal point there are, we will multiply the numerator and denominator of 220820.51077451/1 each by 10 to the power of that many digits. So, in this case, we will multiply the numerator and denominator of 220820.51077451/1 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 220820.51077451 as a fraction:
441641/2 / 1