If A : B = and B : C = , find A : B : C.

Given, A : B = = 5 : 4 and B : C = = 6 : 7 To find A : B : C, we will make B same in both cases. Taking L.C.M. of two values of B i.e. 4 and 6 = 12 ∴ A : B : C = 15 : 12 : 14 Hence, the ratio of A : B : C is 15 : 12 : 14.