five months (old)?
Is it correct to say 'He's five months'? Or you have to say 'he's five months old'

Question

five months (old)?
Is it correct to say 'He's five months'? Or you have to say  'he's five months old'

Answer

THe correct way is "He's five months old". There is no possession so no need for apostrophe.

Answer

Some people may say the first one and it is fine, however the second one is the correct way to say it and write it.