00:03
So in this whole set of problems all the way through to number 68, all we're doing is simplifying the expression.
00:10
Now, in this first one, this is just a fraction, but remember, a rational expression is one that is a over b.
00:21
And those can be numbers, those can be variables, those can be some combination of both.
00:26
Those are all called rational expressions.
00:28
This one has no variable.
00:32
So this is just a constant and we treat it as a fraction and we reduce it as such.
00:39
You need to remember how to reduce a fraction.
00:42
You can do it a couple different ways.
00:44
If you can recognize the gcf, the greatest common factor, then if you just divide out the gcf from the top and bottom, you will have your reduced fractions.
00:55
Most students, especially, you know, early on in algebra, they recognize that, hey, these are both easy.
01:03
Numbers.
01:04
So i know for a fact, we can at the very least divide them by two.
01:09
So let's do that.
01:11
Because it's pretty easy to cut numbers in half, right? and so that would give you negative two over 26...