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# Writing Numbers with Fractions and Fractions in Full

## Hyphens with Whole Numbers and Numbers with Fractions

Here are the rules for using hyphens with whole numbers and numbers that include fractions.Got it? Take a quick test.

## Do Not Use Hyphens with Numbers Used as Quantifiers

When the number is a quantifier to a noun, do not use a hyphen. In these examples, the numbers are highlighted and the nouns are in bold.- The journey takes two
**hours**. - The journey takes two and a half
**hours**. - The journey takes twenty-three and a quarter
**hours**.
(In this example, "twenty-three" is hyphenated because that's how 23 is written in full.)
- The journey takes 23.25
**hours**. - The journey takes one and three-quarter
**hours**.
(Here, "three-quarter" is hyphenated because that's how a fraction is written in full.)

## Use Hyphens with Numbers Used in Adjectives

When the number is the first part of a compound adjective, use hyphens to group the whole adjective together to show it is a single adjective. In these examples, the compound adjectives that include the numbers are highlighted and the nouns are in bold.- It is a two-hour
**journey**. - It is a two-and-a-half-hour
**journey**. - It is a twenty-three-and-a-quarter-hour
**journey**. - It is a 23.25-hour
**journey**. - It is a one-and-three-quarter-hour
**journey**.

Read more about compound adjectives.

## Hyphenating Terms with the Word "Year"

Writers often ask about hyphenation with terms that include "year." Here are the rules:## Hyphenate All the Words in a Compound Noun with Years

The term "two-year-old" is a multi-word noun (called a compound noun.) Here are some more examples of compound nouns with the term "year old" (the compound nouns are highlighted).- A two-year-old knows its mind.
- There are three two-year-olds in the group.
- A four-and-a-half-year-old knows its mind.
- There are three four-and-a-half-year-olds in the group.

- He claims to have seen a six-and-a-half-footer near the breakwater.

- She studied for four
**years**. - She studied for four and a half
**years**.

- She studied for a four-year
**period**. - She studied for a four-and-a-half-year
**period**.

## Writing Fractions in Words

- The population reduced by two-fifths. (This is how ⅖ is written.)
- The population reduced by one-half. (This is how ½ is written.)
- The population reduced by 3 and one-third. (This is how 3⅓ is written.)

- I will receive three thirty-fifths of my salary. (This is how 3/35 is written. "Three-thirty-fifths" looks too unwieldy.)
- I will receive forty-one fiftieths of my salary. (This is how 41/50 is written. "Forty-one-fiftieths" looks too unwieldy.)
- I will receive forty-fiftieths of my salary. (This is how 40/50 is written. If there are no hyphens in the numerator or the denominator, then revert to the normal rules.)

## Hyphenation with Fractions as Quantifiers

Another popular style differentiates between standalone fractions and fractions used as quantifiers. In this style, a fraction is not hyphenated when it stands alone but is hyphenated when it is used as a quantifier. For example:- The population reduced by two fifths. (Note that this is different from the most common style shown above.)
- There was a two-fifths reduction in the population. (In this example, "two-fifths" is hyphenated because it quantifies "reduction.")

##### Interactive Exercise

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