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40 votes
40 votes
What is the ratio of a:b, knowing that
(a - b)/(a + b) = (3)/(5)

User Vangi
by
3.0k points

1 Answer

11 votes
11 votes

You have the following expresion:


(a-b)/(a+b)=(3)/(5)

In order to determine the ratio of a:b, it is necessary to solve the previous equation for a/b, just as follow:


\begin{gathered} 5a-5b=3a+3b \\ 5a-3a=3b+5b \\ 2a=8b \\ (a)/(b)=(8)/(2)=4 \end{gathered}

Hence, the ratio of a/b is 4

User Omkar Dixit
by
2.7k points
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