Question

Find a : b:c when a : b = 4:7 and b:c = 5: 3.
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Answer 1

Answer:

a:b:c = 20:35:21

Step-by-step explanation:

b is common in both so find a multiple from both side of b here I multiplied 7 with 5

Answer 2

Answer:

a:b:c :- 20:35:21

Step-by-step explanation:

Given :- a:b =4:7

b:c= 5:3

b is common in both therefore we have to equal both b

a/b= 4*5 /7*5 = 20/35

b/c = 5*7/3*7 = 35/21

therefore a:b:c :- 20:35:21