Answer: 5 : 12 : 30
Explanation:
A : C B : C
1 : 6 2 : 5
Find the LCM of 6 & 5 (which is 30). Then multiply A : C by 5 and B : C by 6 so the C-values are equal for both ratios.
A : C B : C
1(5) : 6(5) 2(6) : 5(6)
= 5 : 30 12 : 30
A = 5, B = 12, C = 30
5 : 12 : 30