Question

if a:b = 3:4 b:c= 5:7. Find A:B:C

Answer 1

see this is your answer check it out

Answer 2

Lcm of 4 and 5= 20

so, a:b= 3×5/4×5= 15/20

b:c= 5×4/7×4= 20/28

A:B:C= 15:20:20

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