How to Say “A Fifth” in French: Formal and Informal Ways with Tips and Examples

Greetings! If you’re looking to learn how to say “a fifth” in French, you’re in the right place. Whether you need to express this fraction formally or informally, we’ve got you covered. In this guide, we’ll explore various ways to convey this concept, from standard French to regional variations. So, let’s dive in!

Formal Expressions for “A Fifth” in French

When it comes to formal situations in French, such as academic or professional settings, it’s crucial to use the correct terminology. Here are a few ways to express the concept of “a fifth” in a formal manner:

  1. Un cinquième: This is the most conventional and standard expression used to say “a fifth” in French. It is widely recognized and understood.
  2. Une fraction d’un cinquième: For extra clarity, you can specify it as “a fraction of a fifth” when necessary. This form is often used in technical or scientific contexts.
  3. 20%: In formal settings, it’s common to use the equivalent percentage to express a fifth. You can say “vingt pour cent” or simply “20%” to convey the idea accurately.

Remember, when speaking formally, it’s important to use proper grammar and pronunciation. Keep practicing to perfect your French skills!

Informal Ways to Say “A Fifth” in French

Informal situations allow for more flexibility and creativity in expressing the concept of “a fifth” in French. Here are a few casual ways to convey this idea:

  1. Un p’tit cinquième: Using the word “p’tit” (short for “petit,” meaning “small” or “little”) adds a casual and friendly tone to the phrase. It’s the perfect way to express “a little fifth” in a relaxed setting.
  2. Un cinquième de rien: This expression translates to “a fifth of nothing,” conveying the idea that something is insignificant or inconsequential. It’s often used humorously.
  3. Juste un cinquième: When you simply want to say “just a fifth” without any extra embellishments, this expression conveys your intention effectively.

Remember, informal language allows for more flexibility, but always consider the context and your relationship with the person you’re speaking to. Using slang or informal expressions may not be appropriate in certain settings.

Tips and Examples

Now that we’ve covered the formal and informal ways to say “a fifth” in French, here are some tips and examples to help you understand and use these expressions:


  • Listen to native French speakers to improve your pronunciation and intonation.
  • Practice using these phrases in various contexts to become more comfortable with them.
  • Always consider the formality of the situation before choosing the appropriate expression.


Let’s provide a few sample sentences to help illustrate the usage of these expressions:

Dans le gâteau, il y a un cinquième de la quantité recommandée de sucre.

(In the cake, there is a fifth of the recommended amount of sugar.)

Here, we used the formal expression “un cinquième” to indicate the fraction of sugar in the cake. This sentence would work well in academic or professional contexts.

Je vais prendre juste un cinquième de la pizza.

(I’ll just take a fifth of the pizza.)

In this example, we used the casual expression “juste un cinquième” to indicate a small portion of the pizza. It’s ideal for an informal setting among friends or family.

I hope these tips and examples have helped you understand how to say “a fifth” in French both formally and informally. Remember to practice regularly to become more fluent in the language and confidently express yourself.

Bonne chance! (Good luck!)

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