Step 1:
The first step to converting 81775.828170055 to a fraction is to re-write 81775.828170055 in the form p/q where p and q are both positive integers. To start with, 81775.828170055 can be written as simply 81775.828170055/1 to technically be written as a fraction.
Step 2:
Next, we will count the number of fractional digits after the decimal point in 81775.828170055, which in this case is 9. For however many digits after the decimal point there are, we will multiply the numerator and denominator of 81775.828170055/1 each by 10 to the power of that many digits. So, in this case, we will multiply the numerator and denominator of 81775.828170055/1 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 81775.828170055 as a fraction:
408879/5 / 1