Step 1:
The first step to converting 67820.453928565 to a fraction is to re-write 67820.453928565 in the form p/q where p and q are both positive integers. To start with, 67820.453928565 can be written as simply 67820.453928565/1 to technically be written as a fraction.
Step 2:
Next, we will count the number of fractional digits after the decimal point in 67820.453928565, which in this case is 9. For however many digits after the decimal point there are, we will multiply the numerator and denominator of 67820.453928565/1 each by 10 to the power of that many digits. So, in this case, we will multiply the numerator and denominator of 67820.453928565/1 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 67820.453928565 as a fraction:
135641/2 / 1