Question

if a/b=2/3 and b/c=4/5 then (a+b)/(b+c)=​

Answer 1

Answer:

20/27

Step-by-step explanation:

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Answer 2

Answer:

a/b =2/3

b=3/2a

b/c=4/5

c=5/4b=5/4*3/2a=15/8a

a+b= a+3/2a=5/2a

b+c= 3/2a+15/8a=12/8a+15/8a=27/8a

(5/2a)/(27/8a)=(5/2)*(8/27)=40/54=20/27

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