So I was trying to google this, but I have no idea how to describe my question. I tried a few different keywords and still couldn't find the answer.
Basically, I am wondering if there is any difference between this one:
I love studying mathematics, the subject that combines abstract theory with real world applications.
And this one
I love studying mathematics, the subject combining abstract theory with real world applications.
This might not be the best example but is the one that I can come up with right now. Are they grammatically correct? and is there any difference between them?
Thanks a lot.