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MatemáticasMatemáticas689 views·Updated Jun 15, 2026·1 page

Guía Completa de Operaciones con Fracciones: Ejemplos y Soluciones

J
Jennifer Herrera@ennifererrera_h1zmew

¿Te parece complicado trabajar con fracciones? En realidad, todas las...

1
of 1
• Fracciones.

I Todas las operaciones se resuelven Multiplicando!

Suma:
$
\frac{3}{5} + \frac{1}{4} = \frac{12+5}{20} = \frac{17}{20}
$
-

Operaciones con Fracciones: El Secreto de la Multiplicación

Suma de fracciones: Para sumar fracciones como 3/5 + 1/4, primero multiplicas los denominadores (5 × 4 = 20). Luego multiplicas "en x": el primer numerador por el segundo denominador (3 × 4 = 12) y el segundo numerador por el primer denominador (1 × 5 = 5). El resultado es 12+5/20 = 17/20.

Resta de fracciones: Funciona igual que la suma, pero restas en lugar de sumar. Por ejemplo: 3/4 - 1/2 = 6-4/8 = 2/8 = 1/4. Siempre recuerda simplificar tu respuesta final cuando sea posible.

Multiplicación de fracciones: Esta es la más fácil. Solo multiplicas numeradores con numeradores y denominadores con denominadores. Ejemplo: 2/5 × 3/4 = 6/20 = 3/10.

División de fracciones: Aquí también multiplicas "en x", igual que en la suma. Para 2/5 ÷ 4/3, multiplicas 2 × 3 = 6 (arriba) y 5 × 4 = 20 (abajo), dando 6/20 = 3/10.

¡Dato clave! La división también se puede escribir como una fracción grande con otra fracción adentro. El método "en x" (o "en oreja") funciona perfecto para resolverla.

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: Operations on Fractions

4

Most popular content in Matemáticas

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

MatemáticasMatemáticas689 views·Updated Jun 15, 2026·1 page

Guía Completa de Operaciones con Fracciones: Ejemplos y Soluciones

J
Jennifer Herrera@ennifererrera_h1zmew

¿Te parece complicado trabajar con fracciones? En realidad, todas las operaciones con fracciones se pueden resolver usando multiplicación. Una vez que entiendas estos trucos simples, vas a poder hacer cualquier operación con fracciones súper rápido.

1
of 1
• Fracciones.

I Todas las operaciones se resuelven Multiplicando!

Suma:
$
\frac{3}{5} + \frac{1}{4} = \frac{12+5}{20} = \frac{17}{20}
$
-

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Operaciones con Fracciones: El Secreto de la Multiplicación

Suma de fracciones: Para sumar fracciones como 3/5 + 1/4, primero multiplicas los denominadores (5 × 4 = 20). Luego multiplicas "en x": el primer numerador por el segundo denominador (3 × 4 = 12) y el segundo numerador por el primer denominador (1 × 5 = 5). El resultado es 12+5/20 = 17/20.

Resta de fracciones: Funciona igual que la suma, pero restas en lugar de sumar. Por ejemplo: 3/4 - 1/2 = 6-4/8 = 2/8 = 1/4. Siempre recuerda simplificar tu respuesta final cuando sea posible.

Multiplicación de fracciones: Esta es la más fácil. Solo multiplicas numeradores con numeradores y denominadores con denominadores. Ejemplo: 2/5 × 3/4 = 6/20 = 3/10.

División de fracciones: Aquí también multiplicas "en x", igual que en la suma. Para 2/5 ÷ 4/3, multiplicas 2 × 3 = 6 (arriba) y 5 × 4 = 20 (abajo), dando 6/20 = 3/10.

¡Dato clave! La división también se puede escribir como una fracción grande con otra fracción adentro. El método "en x" (o "en oreja") funciona perfecto para resolverla.

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: Operations on Fractions

4

Most popular content in Matemáticas

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