Step 1:
The first step to converting 773815568.65455 to a fraction is to re-write 773815568.65455 in the form p/q where p and q are both positive integers. To start with, 773815568.65455 can be written as simply 773815568.65455/1 to technically be written as a fraction.
Step 2:
Next, we will count the number of fractional digits after the decimal point in 773815568.65455, which in this case is 5. For however many digits after the decimal point there are, we will multiply the numerator and denominator of 773815568.65455/1 each by 10 to the power of that many digits. So, in this case, we will multiply the numerator and denominator of 773815568.65455/1 each by 100000:
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 773815568.65455 as a fraction:
773815568/1 / 1