Question

A :B=3:5 and B:C=5:7 then A: B: C​

Answer 1

Answer:

a:b=3:4

b:c=5:7

we want to equalize b value

take lcm of 4,5

lcm is 20

so

a:b=(3:4)5=15:20

b:c=(5:7)4=20:28

a:b:c=15:20:28

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hope helpful

Answer 2

Answer:

a:b =3:5 ,b:c =5:7 , c:a = 7:3

Step-by-step explanation:

a:b:c = 3:5:7