Bug 497242

Summary: Fraction localization error
Product: [Applications] kbruch Reporter: Salvo "LtWorf" Tomaselli <tiposchi>
Component: generalAssignee: Sebastian Stein <seb.kde>
Status: RESOLVED NOT A BUG    
Severity: normal CC: tiagoporangaba
Priority: NOR    
Version: 22.12.3   
Target Milestone: ---   
Platform: Other   
OS: Linux   
Latest Commit: Version Fixed In:
Sentry Crash Report:

Description Salvo "LtWorf" Tomaselli 2024-12-09 17:14:41 UTC 
Hello,

I was playing with kbruch today and it gave me this

1½ * 1⅖ =

To which I replied ⅕, which it marked wrong saying it should have been 21/10.

I asked other people (who have studied math at university, like me) and they were all very surprised.

Then I asked on IRC and a german person said it was correct, and sent me a wikipedia link (https://en.wikipedia.org/wiki/Fraction#Mixed_numbers)

From that wikipedia link, I went to the Italian version of the page (https://it.wikipedia.org/wiki/Frazione_(matematica)#Altri_tipi_di_frazioni) where all such fractions are written with a + sign. There is a note saying that anglosaxon countries might omit the + sign.

So to any italian national, writing 1½ is not the same as (1+½).

To us the question is identical to ½+⅖.

Can you please consider using the international notation if the locale is not set to USA/Germany/{I don't know who else uses this notation}?

Thanks
Comment 1 Salvo "LtWorf" Tomaselli 2024-12-09 17:21:13 UTC 
Spanish friend who lives in sweden said to him it's ⅕ but not to his son who goes to school in sweden.
Comment 2 Sebastian Stein 2024-12-09 20:02:34 UTC 
The UI provides the option to disable this notation as it is not used everywhere. I believe in English the checkboxes are called "mixed numbers".

It is a one-time setting as your settings are saved.
Comment 3 Sebastian Stein 2024-12-09 20:03:46 UTC 
Deep-link to handbook where this is also explained: https://docs.kde.org/stable5/en/kbruch/kbruch/exercises.html#task_paras