如何用英文表达 “几分之几”

我们可以用小数(decimals)或分数(fractions)来描述小于1的数位。日常生活中，我们多使用小数，但知道如何用英语读和说“分数”(几分之几)仍然很有用。

如何用英文说 “1/3, 2/3”？

首先我们要知道：分子用基数词，分母用序数词。

基数词 – one, two, five, ten…

序数词 – first, second, third, fourth…

1/3 就是 one third。这里 one 也可以用 a 代替，即 a third。

如果分子大于一，分母要+s

2/3 就是 two thirds. （可以理解成 2 个 one third, 所以后面+s）

有几个例外：

• 1/2：表达为 one half 或 a half.
• 1/4:  除了说 one fourth/a fourth, 也可以说 one quarter/a quarter.
• 5¾: 五又三分之二，这类我们要在整数和分数之间用 and。即 five and two thirds.

更多分数“几分之几”的英文表达例子

1/3	one third	2/3	two thirds
1/4	one quarter/one fourth	3/4	three quarters/three fourths
1/5	one fifth	2/5	two fifths
1/8	one eighth	7/8	seven eighths
1/10	one tenth	4/10	four tenths
1/16	one sixteenth	3/16	three sixteenths
1/100	one hundredth	3/100	three hundredths
11/2	one and a half	3 ⅞	three and seven eighths
325 ½	three hundred and twenty-five and one half

注意以下这两类表达方式，代表不同的数字：

one and a half thousand = 1500

one thousand and one half = 1000 ½