整體被切開後的一份
數學上的用法是這個畫面最原始、最看得見的形態;日常那個「一小部分」是同一個畫面被拿來講份量。
maths fraction · noun · C2
A part of a whole number in maths, written with one number over another, such as 1/2 or 3/4.
分數
One way to picture it: a whole thing has been broken apart, and you are holding just one of the pieces — not the whole, only a part of it.
From Latin fractio "a breaking", related to fracture and fragile — the word literally names the act of breaking, and then the piece that breaking leaves behind.
這個字來自拉丁文 fractio「打破」,跟 fracture(骨折、斷裂)、fragile(易碎的)是同一家人。也就是說 fraction 字面上先是「打破這件事」,然後才變成「打破之後剩下的那一塊」。知道這條線之後,數學課本上的「分數」就不再是死背的術語了——分數就是把一整個切開之後,你拿走的那幾塊。
The entry's origin note: Middle English fraccioun ("a breaking") ← Old French fraccion ← Medieval Latin fractio ("a fragment, portion").
One branch
整體被切開後的一份
數學上的用法是這個畫面最原始、最看得見的形態;日常那個「一小部分」是同一個畫面被拿來講份量。
maths fraction · noun · C2
A part of a whole number in maths, written with one number over another, such as 1/2 or 3/4.
分數
以下是外部詞典記錄的用法,原文照列,我們還沒有寫成教學內容。上面的說明才是我們自己寫的;有些用法可能上面已經講過了。
Fractionname
A surname.
fractionnoun/ˈfɹæk.ʃən/
A part of a whole, especially a comparatively small part.
arithmeticA ratio of two numbers (numerator and denominator), usually written one above the other and separated by a horizontal bar called the vinculum or, alternatively, in sequence on the same line and separated by a solidus (diagonal bar).
chemistrynatural-sciencesphysical-sciencesA component of a mixture, separated by fractionation.
ChristianityIn a eucharistic service, the breaking of the host.
A small amount.
archaicThe act of breaking, or state of being broken, especially by violence.
fractionverb/ˈfɹæk.ʃən/
To divide or break into fractions.
To fractionate.
資料來源:英文維基詞典 English Wiktionary(CC BY-SA 4.0)。 原文照列,未經改寫。