Step 1:
The first step to converting 854423.9771396 to a fraction is to re-write 854423.9771396 in the form p/q where p and q are both positive integers. To start with, 854423.9771396 can be written as simply 854423.9771396/1 to technically be written as a fraction.
Step 2:
Next, we will count the number of fractional digits after the decimal point in 854423.9771396, which in this case is 7. For however many digits after the decimal point there are, we will multiply the numerator and denominator of 854423.9771396/1 each by 10 to the power of that many digits. So, in this case, we will multiply the numerator and denominator of 854423.9771396/1 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 854423.9771396 as a fraction:
854424/1 / 1