Step 1:
The first step to converting 91866.128449683 to a fraction is to re-write 91866.128449683 in the form p/q where p and q are both positive integers. To start with, 91866.128449683 can be written as simply 91866.128449683/1 to technically be written as a fraction.
Step 2:
Next, we will count the number of fractional digits after the decimal point in 91866.128449683, which in this case is 9. For however many digits after the decimal point there are, we will multiply the numerator and denominator of 91866.128449683/1 each by 10 to the power of that many digits. So, in this case, we will multiply the numerator and denominator of 91866.128449683/1 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 91866.128449683 as a fraction:
643063/7 / 1