Nested fractions when you have to determine what a "one" is and is not.

I figured it out. Sorry if I wasted anyone's time with this question. It was simple when you got down to it. If anyone has the same question I had you simply have to use a bit of logic with your particular problem. 

If x/y + 1 / x/y -1

since 1 can be expressed as 1/1

1 can also be expressed as y/y if y is not equal to zero and x is not equal to y. 

When it comes down to it practice is key. I spent about 8 hours on it before I was able to do it without a mistake. If your still having problems, PRACTICE.  Don't forget to use the "i'm stuck button to have the problem explained to you. You may not get the problem right the first time. That's fine. Mathematics is a journey. 

On a side note don't forget to factor problems cautiously. By trying to distribute and x or a 2 you may be missing the big picture when you also have to factor out another variable or coefficient. The whole point is to have a fraction that is simplified. You want your answer to look less complex than your problem. If is't the other way around you may have made an error at the beginning of your problem. 

I hope I can shed a little light on this subject. Thank you.

cool, guy