分提的英文：
fractionation

Could you move a fraction closer?
你能不能稍微再挪近点儿？

In this case the fractional part is discarded.
在此情况下小数部分被丢掉了。

You do fractions, then you do decimals.
你先学习分数，然后，学习小数。

One forth is a proper fraction.
四分之一是一个真分数。

Fraction is really complicated.
分数真是复杂。