Question 860918
a: b =3 : 4, the value of (2a + 3 b) : (3a+4b)is

{{{a/b =3 /4}}}

{{{a/3 =b/4}}}

Let {{{a/3 =b/4= k}}}


a=3k
b=4k
(2a + 3 b) : (3a+4b)


(2*3k + 3 *4k) / (3*3k+4*4k)

(6k+12k)/(9k+16k)

(18k)/(25k)

=18/25