I ate only one-third of the pizza because I was not very hungry.
我只吃了三分之一個披薩，因為我沒有很餓。
The store is offering a special discount–you can buy it at one-half of the regular price.
這間店在作特價，只要平常的一半價錢就可以買到了。
（數學問題） Tom had a pizza, and he shared it with his friend. If he gave his friend half of the pizza, how much of the pizza does Tom have left? Tom有一塊披薩，他和朋友兩個人一起吃。如果他給對方一半的披薩，自己還剩下多少？
分子＋over＋分母
接下來我們看看第二種分數的表達方式。
3分之1「one over three」 3分之2「two over three」 2分之1「one over two」 4分之1「one over four」 4分之3「three over four」
1又3分之1「One and one-third」 3又2分之1「three and one half」
（數學問題） John had 4 apples. After sharing with his friend, he had one and one-third apples remaining. How many apples did he give to his friend? John原本有四顆蘋果。他分了一些給朋友，自己留下一又三分之一顆，請問他總共分給朋友多少顆蘋果？
相關用法
接下來再看看分母和分子的英文又要怎麼說。
分母：denominator 分子：numerator
這比較算是在閱讀學術性文章時，可能會需要知道的單字。以下搭配例句協助各位理解。
分母
分母的英文如前所述，是「denominator」。
To add or subtract fractions, you need to have a common denominator.
在作分數的加減運算時，必須先把分母通分。
When multiplying fractions, you multiply the numerators and the denominators together.
在作分數的乘法運算時，就把分子彼此相乘，分母也彼此相乘。
In the fraction 3/8, the ‘8’ is the denominator.
分數 3/8 的分母是’8′ 。
分子
分子的單字是「numerator」。
In the fraction 3/5, the ‘3’ is the numerator.
分數 3/5 的分子是 ‘3’ 。
When adding or subtracting fractions, you add or subtract the numerators.
在作分數的加減運算時，是把同分母的分子相加或相減。
