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Justyna Jupowicz-Kozak

CEO of Professional Science Editing for Scientists @ prosciediting.com

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two fifth of

Grammar usage guide and real-world examples

USAGE SUMMARY

The phrase 'two fifth of' is not correct.
In English, it should be written as 'two fifths of'. Example: Two fifths of the pie was eaten at the party.

⚠ May contain grammatical issues

Science

Human-verified examples from authoritative sources

Exact Expressions

3 human-written examples

About two fifth of respondents did regular exercise.

Two fifth of them (40.3%) reported less than 15 minutes one-way travel time to work.

Likelihood to quit within the next 1 3 years was investigated among providers at PHC centers; close to two fifth of the respondents (39.4%) indicated likelihood to quit their jobs (likely or very likely) and an additional 13.4% were not sure about staying or quitting (Table  2).

Human-verified similar examples from authoritative sources

Similar Expressions

56 human-written examples

But two thirds of what?

News & Media

The New Yorker

Two thirds of a pint, £3.75.

Two thirds of released prisoners will reoffend.

Two thirds of the stillbirths are in just ten countries.

News & Media

The New Yorker

employees, or two thirds of international staff.

News & Media

TechCrunch

The under-11s account for two thirds of the sample and therefore two thirds of the cases of child labour.

Two thirds of the events are sports related.

Two thirds of the clients (44/66) were treated with compression.

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Expert writing Tips

Best practice

Always use the correct plural form "fifths" when expressing fractions. "Two fifths of" is grammatically accurate and widely accepted.

Common error

Avoid using the singular form "fifth" when referring to a fraction greater than one fifth. Always use the plural "fifths" to maintain grammatical correctness.

Antonio Rotolo, PhD - Digital Humanist | Computational Linguist | CEO @Ludwig.guru

Antonio Rotolo, PhD

Digital Humanist | Computational Linguist | CEO @Ludwig.guru

Source & Trust

84%

Authority and reliability

2.8/5

Expert rating

Real-world application tested

Linguistic Context

The phrase "two fifth of" is intended to function as a quantifier, specifying a proportion of something. However, Ludwig AI indicates this phrase is grammatically incorrect, and the correct form is "two fifths of" to properly express the fractional quantity.

Expression frequency: Rare

Frequent in

Science

67%

News & Media

33%

Formal & Business

0%

Less common in

Encyclopedias

0%

Wiki

0%

Reference

0%

Ludwig's WRAP-UP

In summary, the phrase "two fifth of" is grammatically incorrect. The correct phrasing is "two fifths of", as confirmed by Ludwig AI. This corrected form serves to quantify a portion, specifically 40%, and is most frequently encountered in scientific and news contexts. When writing, ensure you include the 's' to maintain grammatical accuracy. Consider using alternative phrases like "40 percent of" or "almost half of" for simplicity.

FAQs

How do I properly use the phrase "two fifths of" in a sentence?

The correct phrase is "two fifths of", with the 's' included. For example, "Two fifths of the students passed the exam".

Is it grammatically correct to say "two fifth of"?

No, it is not grammatically correct. The correct form is "two fifths of". The plural "fifths" is required when the numerator is greater than one.

What's the difference between "two fifth of" and "two fifths of"?

"Two fifth of" is grammatically incorrect, while "two fifths of" is the correct form. The 's' on "fifths" indicates a plural fraction greater than one fifth.

What can I say instead of "two fifths of" if I want to use simpler language?

You can use alternatives like "40 percent of" or "almost half of", depending on the level of precision required.

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Source & Trust

84%

Authority and reliability

2.8/5

Expert rating

Real-world application tested

Most frequent sentences: