When we talk about quarters, we can also talk about three quarters, where instead of talking about this little piece,
we're talking about the rest of the pie.
So, whereas this is one quarter, this in red is three quarters. Okay?
所以，这是"one quarter"，而红色的部分是"three quarters"。
We can also talk about "a fifth", so, if the pie has five parts, 20% would be a fifth.
Okay? So, in red is a fifth, or we can also talk about "a sixth".
所以红色的部分就是a fifth，或者我们还可以说"a sixth"（六分之一）。
If we have one, two, three, four, five, six, six slices, six equal slices, if I color in one of these, that becomes a sixth.
Now, one thing to note: when we talked about "half", we don't use an article, we don't say: "a half". Okay?
Notice there is no "a" here, when we talk about "a third", "a quarter", "a sixth", "a fifth" - we do have "a" there. Okay?
注意这里没有"a"，但是当我们说其他分母，比如"a third", "a quarter", "a sixth", "a fifth"，前面是要加"a"的。
So, you don't need "a" with "half", but you do need it if you're talking about "a third", "a quarter", "a fifth", or "a sixth".
也就是说，"half"前面不加"a"，但是讲到"a third", "a quarter", "a fifth"或者"a sixth"时是需要加上"a"的。
Okay, excellent. So, now let's talk a little more about percents.
Okay, so I made a little bit of a mistake in one of my drawings, a fifth,
I think I drew actually just four slices, here, there's one, two, three, four, five.
So, if I colored in one of these, this slice would be a fifth. Okay?
So, now what we're going to do is we're going to talk about another way to boost your vocabulary mark when you're talking about numbers and pie charts.
So, I have here a new pie chart.