Step 1:
The first step to converting 501278.80820124 to a fraction is to re-write 501278.80820124 in the form p/q where p and q are both positive integers. To start with, 501278.80820124 can be written as simply 501278.80820124/1 to technically be written as a fraction.
Step 2:
Next, we will count the number of fractional digits after the decimal point in 501278.80820124, which in this case is 8. For however many digits after the decimal point there are, we will multiply the numerator and denominator of 501278.80820124/1 each by 10 to the power of that many digits. So, in this case, we will multiply the numerator and denominator of 501278.80820124/1 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 501278.80820124 as a fraction:
501279/1 / 1