Question

a:b=2:3 & b:c=5:7. Find a:b:c

Answer 1

A:B=2:3

B:C=5:7

L.C.M. OF 3 and 5 =15

a:b= 2×5 : 3×5

=10:15

b:c= 5×3: 7×3

=15:21

therefore,

a:b:c = 10:15:21

hope it helps

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Answer 2

Answer:

10:15:21

Step-by-step explanation:

a:b=2:3 & b:c=5:7

        2:3

            5:7  Cross Multiplay

5*2=10, 3*5=15, 7*3=21