"Which" (Adjective) clauses in Spanish

Question

If I wanted to say, "He learns about math, which is his favorite subject, with the help of his teacher, how would I go about doing it?

I'm using this as an example--what I really want to know is how the "which is his favorite subject," part would be handled in Spanish. Thanks

Answer 1

Simple: "que" + the rest of the clause.

What about "lo/la cual"? - gintar77, Sep 3, 2011

That's another option. - lazarus1907, Sep 4, 2011

Answer 2

I would think that in this case (non-restrictive clause) you could use "que", "la que", or "la cual" depending on your preference ("que" is much more common in conversation, and "la que/la cual" are used more in writing) . However, I don't think that "lo cual" or "lo que" would work because these refer more to an idea.

Are you saying that in Spanish you can use "que" in a non-restrictive relative clause but not in a restrictive one? As with "that" in English. I know you can't omit relative pronouns like in English, that i do know! - rabbitwho, Sep 3, 2011

Answer 3

These are often called relative clauses / relative pronouns, they confuse me too.

Here's a page I found on them:

http://users.ipfw.edu/jehle/courses/relpron1.htm