Question

.If A:B = 5:8 and B:C = 18: 25, find A:C

Answer 1

Answer:

9 ratio 20

Step-by-step explanation:

① A : B = 5 : 8

=  

Then,

A = 5

B = 8

② B : C = 18 : 25

=  

Then,

B = 18

C = 25

③ A : C = ?

→  

→  

→  

→  

:. A : C = 9 : 20

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Answer 2

Answer:

9:20

Step-by-step explanation:

a/b=5/8

b/c=18/25

a:b::b:c

b= lcm of 8 and 18 is 72..

a/b = 45/72

b/c = 72/100

a/c = 45/100

= 9/20

=9:20