One half / half

English as a Second Language English Vocabulary, Grammar and Idioms
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Dear members,

One half / half ? Which one is correct? Is there any difference?

One half of the survivors will growing evidence that not all approaches to the almost certainly be gone by 2050, while 40% more preservation of languages will be particularly will probably be well on their way out.

Thanks,
Amir

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quora.com/What-is-the-diffe … d-one-half