Step 1:
The first step to converting 428928.1217718 to a fraction is to re-write 428928.1217718 in the form p/q where p and q are both positive integers. To start with, 428928.1217718 can be written as simply 428928.1217718/1 to technically be written as a fraction.
Step 2:
Next, we will count the number of fractional digits after the decimal point in 428928.1217718, which in this case is 7. For however many digits after the decimal point there are, we will multiply the numerator and denominator of 428928.1217718/1 each by 10 to the power of that many digits. So, in this case, we will multiply the numerator and denominator of 428928.1217718/1 each by 10000000:
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 428928.1217718 as a fraction:
428928/1 / 1