Step 1:
The first step to converting 542271.1166799 to a fraction is to re-write 542271.1166799 in the form p/q where p and q are both positive integers. To start with, 542271.1166799 can be written as simply 542271.1166799/1 to technically be written as a fraction.
Step 2:
Next, we will count the number of fractional digits after the decimal point in 542271.1166799, which in this case is 7. For however many digits after the decimal point there are, we will multiply the numerator and denominator of 542271.1166799/1 each by 10 to the power of that many digits. So, in this case, we will multiply the numerator and denominator of 542271.1166799/1 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 542271.1166799 as a fraction:
542271/1 / 1