fraction n. 1.小部分,碎片,片断。 2.一些,一点儿。 3.【化学】分馏,分层,分级。 4.【宗教】圣餐面包分切式。 5.【数学】分数。 a common [vulgar] fraction 普通分数。 a compound [complex] fraction 繁分数。 a mixed fraction 带分数。 a decimal fraction 小数。 a proper [improper] fraction 真[假]分数。 a fraction closer 稍微靠近一点。 by fractions 有余数的,不完全的。 crumble into fractions 碎成片片。 in a fraction of a second 一秒钟的若干分之几,一转眼的工夫。 not a fraction of 一点也没有。 not by a fraction 一点也不。 to a fraction 〔口语〕道道地地,百分之百地。
Aside from a few special ones, all fractions were decomposed into what are called unit fractions . 除了几个特殊分数之外,所有分数都拆成一些所谓单位分数。
百科解释
A unit fraction is a rational number written as a fraction where the numerator is one and the denominator is a positive integer. A unit fraction is therefore the reciprocal of a positive integer, 1/n.