Step 1:
The first step to converting 11922.428400906 to a fraction is to re-write 11922.428400906 in the form p/q where p and q are both positive integers. To start with, 11922.428400906 can be written as simply 11922.428400906/1 to technically be written as a fraction.
Step 2:
Next, we will count the number of fractional digits after the decimal point in 11922.428400906, which in this case is 9. For however many digits after the decimal point there are, we will multiply the numerator and denominator of 11922.428400906/1 each by 10 to the power of that many digits. So, in this case, we will multiply the numerator and denominator of 11922.428400906/1 each by 1000000000:
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 11922.428400906 as a fraction:
83457/7 / 1