Question

*If a/b = 3/5 then a+b/ b = ?*

1️⃣ 8/5
2️⃣ 5/8
3️⃣ 3/5
4️⃣ 5/3​

Answer 1

Answer:

Here are two methods.

First, multiply the terms each ratio by factors so that the ‘B’ terms become equal:

[math]\quad A:B\ =\ 2:5\ =\ 6:15[/math]

[math]\quad B:C\ =\ 3:1\ =\ 15:5[/math]

Now you can see that

[math]\quad A:B:C\ =\ 6:15:5\qquad\implies\qquad A:C\ =\ 6:5[/math]

Answer 2

4️⃣

$5/3 {}^{}$