Step 1:
The first step to converting 420239274.77184 to a fraction is to re-write 420239274.77184 in the form p/q where p and q are both positive integers. To start with, 420239274.77184 can be written as simply 420239274.77184/1 to technically be written as a fraction.
Step 2:
Next, we will count the number of fractional digits after the decimal point in 420239274.77184, which in this case is 5. For however many digits after the decimal point there are, we will multiply the numerator and denominator of 420239274.77184/1 each by 10 to the power of that many digits. So, in this case, we will multiply the numerator and denominator of 420239274.77184/1 each by 100000:
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 420239274.77184 as a fraction:
420239274/1 / 1