"Ten is a tenth of one hundred."

Translation: Dek estas dekono de cent.

[hellomidnight]

Why do we use de here instead of da?

[hellomidnight]

Update: For anyone who is also confused by this, I have learned the answer. Da is never used when discussing numerals, e.g. cent, tridek, dekono.

[Smalde]

Thanks!

[firehorse4874]

Why is 'unu cent' incorrect? Is there no difference between a hundred and one hundred?

[mizinamo]

No; in English, they are synonymous, and in Esperanto, we don't say "unu dek" or "unu cent", and usually not "unu mil" either: http://bertilow.com/pmeg/gramatiko/nombroj/vortetoj/formoj.html

[Alexanderthemonk]

Why do fractions end in o as if they were nouns?

[mizinamo]

What do you mean "as if they were nouns"?

Fractions are nouns.

You can say "a fifth", "the third", "my quarter of the cake", "the blue half and the green half" just as you can say "a book; the book; my book; the blue book and the green book".

[Robert114370]

Duo diras ke "unu dekono" estas malgxusta. Cxu iu scias kial? Cxu la kialo estas la sama kiel kun cent, mil, ktp?

Ankaux, bonvolu korekti min se miaj frazoj estas malgxustaj

[Scott_MacGregor]

Kial dekono ne estas en la akusativo? Mi pensis, ke mezuroj estus akusativo, kaj dekono estas mezuro, ĉu ne?