Step 1:
The first step to converting 220898.870424 to a fraction is to re-write 220898.870424 in the form p/q where p and q are both positive integers. To start with, 220898.870424 can be written as simply 220898.870424/1 to technically be written as a fraction.
Step 2:
Next, we will count the number of fractional digits after the decimal point in 220898.870424, which in this case is 6. For however many digits after the decimal point there are, we will multiply the numerator and denominator of 220898.870424/1 each by 10 to the power of that many digits. So, in this case, we will multiply the numerator and denominator of 220898.870424/1 each by 1000000:
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 220898.870424 as a fraction:
220899/1 / 1