How do you say 'My father and I share the same birthday'?


**I am a total beginner in Japanese.** If I were to translate it with the
knowledge I have, it would be:

[code]

    わたし の おとうさん と わたし の たんじょうび は [insert Japanese word for 'share'] です.
    
[/code]

The setting would be as if I am talking to a stranger or discussing it in a
more professional setting.

But, if you could also share how to say it informally, that would also be
appreciated.




You can (and should) simply use おなじ (同じ), which means "the same".

> 私のお父さんと私の誕生日は同じです。  
>  わたしの おとうさんと わたしの たんじょうびは おなじです。
>
> (Literally) My [birthday] and my father's birthday are the same.

Or you can say the following, too:

> 私と私のお父さんは誕生日が同じです。  
>  わたしと わたしの おとうさんは たんじょうびが おなじです。
>
> (Literally) As for me and my father, the birthday is the same.

In a very formal setting, replace おとうさん to ちち (父).

There is also a transitive verb 共有する【きょうゆうする】, meaning "to share", but it's a
little difficult word in Japanese, and and it's primarily used in the sense
that multiple people own or use the same tangible thing such as a PC or a
room. It's seldom used in the context of two people having the same property.

