33,038 views
42 votes
42 votes
Find the ratio of A : B: C when

(a) A : B = 3 : 5 A : C = 6 : 7

User Bitwelder
by
2.3k points

2 Answers

11 votes
11 votes
A: a:b=c answer is A:B=3:5
User Dior
by
3.0k points
26 votes
26 votes

9514 1404 393

Answer:

A : B : C = 6 : 10 : 7

Explanation:

The A value is common to both ratios. In order to form the ratio A:B:C we must have the number of ratio units representing A be the same in both A:B and A:C. That number must be the least common multiple of 3 and 6, which is 6.

Multiplying the first ratio by 2, we have ...

A : B = 6 : 10

A : C = 6 : 7

So, we can write the triple ratio as ...

A : B : C = 6 : 10 : 7

User Reddi Rajendra P
by
2.9k points