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

```

    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.
    
```

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.
CC BY-SA 4.0
2023-01-29T03:45:13.467
98353
2023-01-29T05:02:58.253
2023-01-29T04:25:46.483
5010
55606
question
english-to-japanese phrase-requests
How do you say 'My father and I share the same birthday'?
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.
CC BY-SA 4.0
2023-01-29T04:35:07.093
98354
2023-01-29T04:35:07.093
5010
98353
answer
わたし の おとうさん と わたし の たんじょうび は 同じ/一緒/同一 です is acceptable.

同じ is the most common. You can use this almost in any situation.

一緒 may feels a little bit more casual though you can use it in almost in any
situation.

同一 is a bit difficult word usually used when strictness is needed such as you
explain machines' function. You would see the sentence above, in a math
problem.

You can also say わたし の おとうさん の たんじょうび は わたし と 同じ/一緒/同一 です.
CC BY-SA 4.0
2023-01-29T05:02:58.253
98356
2023-01-29T05:02:58.253
55517
98353
answer