Step 1:
The first step to converting 681780.42773819 to a fraction is to re-write 681780.42773819 in the form p/q where p and q are both positive integers. To start with, 681780.42773819 can be written as simply 681780.42773819/1 to technically be written as a fraction.
Step 2:
Next, we will count the number of fractional digits after the decimal point in 681780.42773819, which in this case is 8. For however many digits after the decimal point there are, we will multiply the numerator and denominator of 681780.42773819/1 each by 10 to the power of that many digits. So, in this case, we will multiply the numerator and denominator of 681780.42773819/1 each by 100000000:
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 681780.42773819 as a fraction:
681780/1 / 1