小數,分數,百分數及倍數的怎麼表達?怎麼讀?

1. 小數標記法小數點左邊的數通常按基數詞讀,若為三位以上的數,也可按編碼式讀法讀出,即將數位單個讀出;小數點

1. 小數標記法

小數點左邊的數通常按基數詞讀,若為三位以上的數,也可按編碼式讀法讀出,即將數位單個讀出;小數點右邊的數通常按編碼式讀法單個讀出。如:
6.86 six point eight six
14.15 fourteen point one five
345.456 three four five point four five six
three hundred and fortyfive point four five six

(2) 小數中“0”的讀法
“0”
在小數中通常讀作nought(英)或zero(美),也可讀作字母o。如:
0.08
noughtpoint nought eight zeropoint zero eight
9.07 nine point o seven

2.
百分數標記法

百分數中的百分號%讀作percent。如:
6%
讀作 six percent
0.6%
讀作nought point six percent
500%
讀作 five hundred percent

3.
倍數標記法

倍數表示方法很多,如:
This room is four times as big as mine.
這個房間是我房間的四倍。
This room is three times larger than that one.
這個房間比那個房間大兩倍。
The output of coal has doubled.
煤的產量增加了一倍。
My aunt is as old again as I am.
我姑姑年齡比我大一倍。
Productivity is increased three fold.
生產效率提高了兩倍。
The volume of the Sun is about 1,300,000 times that of the Earth.
太陽的體積約為地球的1300000倍。

4.
分數標記法

(1) 較小分數的一般讀寫方法。如:

1/3 one-third 2/3 two-thirds 3/5 three-fifths

(2) 較複雜分數的簡明讀寫方法。如

22/9 twenty-two over nine
a/b a over b
a divided by b 43/97 forty-three over ninety-seven

(3) 整數與分數之間須用and連接。如:

four and a half nine and two fifths

(4) 分數用作前置定語時,分母要用單數形式。注意下列寫法與讀法。如:

a one-third mile 1/3英里 a three-quarter majority 3/4的多數

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