Questions relating to the use of numbers or numerals in speaking or writing English.

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Is there a fraction prefix for “(one-)third”?

I am a mathematician, working with things called 1⁄k-regular polytopes, dubbed thus by Conway. For the case of k = 2, as in ½-regular, it is naturally pronounced and written half-regular. However, I ...
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Using hyphens in numbers (British English)

I heard that there is some recent rule which says that you shouldn't hyphenate numbers such as "twenty-two". Is this true?
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Should small numbers with a unit after them be spelt out or written in digits?

I heard it is better to write out numbers less than ten then to represent them using digits. Is this still true if there's a unit of measurement after the number? For example, in a research paper ...