Find the missing number.

Question

5/15 = ?/3

Is 1 the correct answer?

Answer 1

5 / 15 = x / 3

5 * 3 = x * 15

15 = 15 x Divide both sides with 15

x = 1

5 / 15 = 1 / 3

Answer 2

I got the answer 1 by doing this...

15 divided by 3 = 5
5 divided by 5 = 1

Is that a wrong way to answer the problem?
That's the way my book shows.

Answer 3

That's the way I got the answer too. Thank you!!!