How to sum two fields in AngularJS and show the result in an label?

Question

I have an situation on my page.

I have two inputs and an label in my page. These label have to show the sum of these two inputs value.

So I tried below sol

Answer 1

    
    
    
    	
    	
    
    
    	

    		
First Number 
    		
Second Number 
    		
Total {{ (snum) + (fnum) }}