This means two or more things are exactly alike. It is like saying 'the same as' in English.
Noun + と同じPrimary
This means two or more things are exactly alike. It is like saying 'the same as' in English.
私のカバンは、あなたのと同じです。
My bag is the same as yours.
試合の結果は、前回と全く同じだった。
The result of the match was exactly the same as last time.
このラーメンの味は、いつも食べているのと同じじゃない気がする。
I have a feeling that the taste of this ramen isn't the same as the one I usually eat.
見本と同じ色の紙をご用意ください。
Please prepare paper of the same color as the sample.
彼が使っているパソコンは、私が去年買ったのと同じモデルだ。
The computer he is using is the same model as the one I bought last year.
You use 「と」 to show what you are comparing something to. It points to the thing that is 'the same as' something else. Think of it like an arrow pointing to the reference.
This is different from 'BよりAのほうが'. That means 'A is more than B'. This phrase means 'A is the same as B'. You use it when things are equal. You use 'BよりAのほうが' when one thing is better or bigger.
Don't use this when you compare actions. For example, you cannot say "食べるのと同じ" (the same as eating). You need to add "こと" or "の" before "と同じ" when you compare actions. This makes the action a noun.
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