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Operatii cu fractii

 
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Marcelina Popa
Bernoulli


Joined: 05 Mar 2008
Posts: 208
Location: Tulcea

PostPosted: Sun Nov 09, 2008 1:40 pm    Post subject: Operatii cu fractii Reply with quote

Daca vreti sa aflati anticipat cum se pot amplifica, simplifica, aduna, scadea, inmulti si imparti fractiile puteti afla dand clic AICI.

Daca stiti engleza la un nivel acceptabil, va puteti uita si AICI.
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cristinastirbu



Joined: 28 Feb 2013
Posts: 1

PostPosted: Thu Feb 28, 2013 9:23 am    Post subject: Re: Operatii cu fractii Reply with quote

[quote="Marcelina Popa"]Daca vreti sa aflati anticipat cum se pot amplifica, simplifica, aduna, scadea, inmulti si imparti fractiile puteti afla dand clic


Fractiile nu se pot aduna sau scadea; operatiile respective se pot efectua doar intre numere rationale.
Se intelege despre ce e vorba, dar o abordare riguroasa este urmatoarea:
-amplificam , simplificam si aducem la acelasi numitor fractii;
-operatiile de adunare, scadere, inmultire, impartire se efectueaza intre numere rationale , care sunt clase de fractii.
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