If a/4 = b/3 = c/2 then find ( (a + b )/(a + b + c ) ).

Given, \(\frac{a}{4}\) = \(\frac{b}{3}\) = \(\frac{c}{2}\)

Here we can directly conclude that 

a = 4, b = 3, c = 2, hence

⇒ (\(\frac{a + b }{a + b + c }\)) = (\(\frac{4 + 3 }{4 + 3 + 2}\)) = \(\frac{7}{9}\)