Step 1:
The first step to converting 220312.45420683 to a fraction is to re-write 220312.45420683 in the form p/q where p and q are both positive integers. To start with, 220312.45420683 can be written as simply 220312.45420683/1 to technically be written as a fraction.
Step 2:
Next, we will count the number of fractional digits after the decimal point in 220312.45420683, which in this case is 8. For however many digits after the decimal point there are, we will multiply the numerator and denominator of 220312.45420683/1 each by 10 to the power of that many digits. So, in this case, we will multiply the numerator and denominator of 220312.45420683/1 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 220312.45420683 as a fraction:
440625/2 / 1