Step 1:
The first step to converting 428242.57575996 to a fraction is to re-write 428242.57575996 in the form p/q where p and q are both positive integers. To start with, 428242.57575996 can be written as simply 428242.57575996/1 to technically be written as a fraction.
Step 2:
Next, we will count the number of fractional digits after the decimal point in 428242.57575996, which in this case is 8. For however many digits after the decimal point there are, we will multiply the numerator and denominator of 428242.57575996/1 each by 10 to the power of that many digits. So, in this case, we will multiply the numerator and denominator of 428242.57575996/1 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 428242.57575996 as a fraction:
428243/1 / 1