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MatematicaMatematica1,741 views·Updated Jun 26, 2026·1 page

Frazioni Algebriche: Operazioni e Condizioni di Esistenza

R
Rebecca Mazzetti@rebeccamazzetti_zonl

Le frazioni algebrichesono uno strumento fondamentale in matematica che...

1
of 1
# MAPPA FRAZIONI ALGEBRICHE, CONDIZIONI DI ESISTENZA e OPERAZIONI
# MAZZETTI REBECCA 3N

FRAZIONI ALGEBRICHE
↓
sono ie rapporto fra due poli

Frazioni Algebriche e Operazioni

Pensa alle frazioni algebriche come alle frazioni normali, ma invece di avere numeri sopra e sotto, hai dei polinomi. Una frazione come 8(x+6)x\frac{8(x+6)}{x} è perfettamente normale in algebra!

La cosa più importante da ricordare è che ogni monomio o polinomio può essere considerato una frazione algebrica con denominatore 1. Questo ti aiuterà quando dovrai fare operazioni più complesse.

Per le operazioni (addizione, sottrazione, moltiplicazione, divisione e potenze), le regole sono identiche a quelle delle frazioni numeriche. L'unica differenza è che lavori con lettere invece che solo con numeri. Ad esempio: abcd=acbd\frac{a}{b} \cdot \frac{c}{d} = \frac{ac}{bd}.

💡 Trucco: Prima di iniziare qualsiasi calcolo, scomponi sempre numeratori e denominatori in fattori - ti semplificherà enormemente la vita!

Le condizioni di esistenza (C.E.) sono cruciali: devi sempre verificare quando il denominatore diventa zero e escludere quei valori. Per esempio, in x+2x(x3)(x+3)\frac{x+2}{x(x-3)(x+3)} le condizioni sono x0x3x3x \neq 0 \land x \neq 3 \land x \neq -3.

Gli zeri della frazione sono invece i valori che annullano il numeratore, come x=1x = 1 per la frazione x13x+2\frac{x-1}{3x+2}.

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Most popular content: operazioni con le frazioni

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The app is very easy to use and well designed. I have found everything I was looking for so far and have been able to learn a lot from the presentations! I will definitely use the app for a class assignment! And of course it also helps a lot as an inspiration.

Stefan SiOS user

This app is really great. There are so many study notes and help [...]. My problem subject is French, for example, and the app has so many options for help. Thanks to this app, I have improved my French. I would recommend it to anyone.

Samantha KlichAndroid user

Wow, I am really amazed. I just tried the app because I've seen it advertised many times and was absolutely stunned. This app is THE HELP you want for school and above all, it offers so many things, such as workouts and fact sheets, which have been VERY helpful to me personally.

AnnaiOS user
MatematicaMatematica1,741 views·Updated Jun 26, 2026·1 page

Frazioni Algebriche: Operazioni e Condizioni di Esistenza

R
Rebecca Mazzetti@rebeccamazzetti_zonl

Le frazioni algebrichesono uno strumento fondamentale in matematica che ti permette di lavorare con rapporti tra polinomi. Proprio come le frazioni numeriche che già conosci, seguono regole precise ma con una complicazione in più: devi sempre controllare che il...

1
of 1
# MAPPA FRAZIONI ALGEBRICHE, CONDIZIONI DI ESISTENZA e OPERAZIONI
# MAZZETTI REBECCA 3N

FRAZIONI ALGEBRICHE
↓
sono ie rapporto fra due poli

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Frazioni Algebriche e Operazioni

Pensa alle frazioni algebriche come alle frazioni normali, ma invece di avere numeri sopra e sotto, hai dei polinomi. Una frazione come 8(x+6)x\frac{8(x+6)}{x} è perfettamente normale in algebra!

La cosa più importante da ricordare è che ogni monomio o polinomio può essere considerato una frazione algebrica con denominatore 1. Questo ti aiuterà quando dovrai fare operazioni più complesse.

Per le operazioni (addizione, sottrazione, moltiplicazione, divisione e potenze), le regole sono identiche a quelle delle frazioni numeriche. L'unica differenza è che lavori con lettere invece che solo con numeri. Ad esempio: abcd=acbd\frac{a}{b} \cdot \frac{c}{d} = \frac{ac}{bd}.

💡 Trucco: Prima di iniziare qualsiasi calcolo, scomponi sempre numeratori e denominatori in fattori - ti semplificherà enormemente la vita!

Le condizioni di esistenza (C.E.) sono cruciali: devi sempre verificare quando il denominatore diventa zero e escludere quei valori. Per esempio, in x+2x(x3)(x+3)\frac{x+2}{x(x-3)(x+3)} le condizioni sono x0x3x3x \neq 0 \land x \neq 3 \land x \neq -3.

Gli zeri della frazione sono invece i valori che annullano il numeratore, come x=1x = 1 per la frazione x13x+2\frac{x-1}{3x+2}.

We thought you’d never ask...

What is the Knowunity AI companion?

Our AI companion is specifically built for the needs of students. Based on the millions of content pieces we have on the platform we can provide truly meaningful and relevant answers to students. But its not only about answers, the companion is even more about guiding students through their daily learning challenges, with personalised study plans, quizzes or content pieces in the chat and 100% personalisation based on the students skills and developments.

Where can I download the Knowunity app?

You can download the app in the Google Play Store and in the Apple App Store.

Is Knowunity really free of charge?

That's right! Enjoy free access to study content, connect with fellow students, and get instant help – all at your fingertips.

Most popular content: operazioni con le frazioni

9

Most popular content in Matematica

9

Most popular content

9

Can't find what you're looking for? Explore other subjects.

Students love us — and so will you.

4.6/5App Store
4.7/5Google Play

The app is very easy to use and well designed. I have found everything I was looking for so far and have been able to learn a lot from the presentations! I will definitely use the app for a class assignment! And of course it also helps a lot as an inspiration.

Stefan SiOS user

This app is really great. There are so many study notes and help [...]. My problem subject is French, for example, and the app has so many options for help. Thanks to this app, I have improved my French. I would recommend it to anyone.

Samantha KlichAndroid user

Wow, I am really amazed. I just tried the app because I've seen it advertised many times and was absolutely stunned. This app is THE HELP you want for school and above all, it offers so many things, such as workouts and fact sheets, which have been VERY helpful to me personally.

AnnaiOS user