Why the 51 part uses a hyphen
Compound numbers from 21 through 99 join the tens word and the ones word with a hyphen. In 51, the 51 part combines fifty and one, producing fifty-one.
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51 in words is fifty-one.
| Style | Words |
|---|---|
| American English | fifty-one |
| British English | fifty-one |
Compound numbers from 21 through 99 join the tens word and the ones word with a hyphen. In 51, the 51 part combines fifty and one, producing fifty-one.