Non-controlling interest, multiples, equity value

Hey guys, got a question on calculating multiples with regards to non-controlling interest and a second question on equity value.

(1)

So when calculating EV/EBITDA, you want to include +non-controlling interest (figure from your shareholders equity/balance sheet) in EV because if someone wanted to buy the company as it is, he would also have to eventually buy the "non-controlling part" that you don't own yet. Hence, EBITDA also includes EBITDA from fully consolidated companies.

Now when I calculated EPS, is it correct to assume to only take net income attributable to the shareholders of the company that means adjusted for non-controlling interest (income figure).

So let's say:

Total net income = 100
-Profit/+Loss attributable to non-controlling interest = -10 (There was a profit of 10)
Net income attributable to shareholders = 90

Hence: EPS=90/shares outstanding (disregarding dividends or FDSO).

Is this correct?

(2)

If this is correct and the P/E ratio values the value of the shareholders equity (retained earnings, non-controlling interest, preferred stock and common stock), that value projection wouldn't be correct, since it disregards the non-controlling interest net income contribution in the EPS calculation (higher net income).

Or does the P/E ratio just value the common stock of a company rather than the shareholders equity. In this case this would be clear.

-->What exactly is equity value?

I hope I have expressed my question so you may understand it. If not please say what is unclear.

Big thanks for any contributions.