00:02
All right, here we are being asked to simplify the expression.
00:08
If you're looking in your textbook, then you see those directions for this entire set of problems.
00:13
And they will get more intricate and take a lot more steps to do them than these ones earlier in the section.
00:22
You just need to remember, you might look at this and say, hey, that's a fraction.
00:27
Well, technically, it's still a rational expression, right? a rational expression is anything that's written as something over something else.
00:35
In this case, there's just no variables involved or anything like that.
00:39
So literally, all we have to do here is reduce the fraction.
00:45
And that means simplifying a rational expression.
00:48
Reducing is just another name for simplifying when you're not dealing with any variable expressions.
00:56
And this one's pretty easy, okay, because there is only one number.
01:01
It should be pretty obvious.
01:03
There's only one number that divides into both 44 and 55.
01:07
Okay.
01:09
And that's, of course, going to be 11.
01:11
So if we want to simplify this expression, we're just going to divide top and bottom by 11.
01:18
And if you watch the previous one, you know that you don't have to necessarily reduce your fraction all in one shot.
01:27
Okay.
01:27
This one just happens to be obvious because most people know that if you have a two -digit number that's two of the same, then that's always times 11, right? 11 times 2 is 22, 33, 44, 55, 66, and so all...