If 15 counters are the whole set, how many are 3/5 of the set

Hi.

So, you'll notice that we can multiply the denominator by 3 to get 15.

What we do the denominator, we do to the numerator.

5 • 3 = 15

3 • 3 = 9

Now, we have 9/15.

There are 9 counters in 3/5 of a set.

Let me know if you encounter any errors in my answer - I did this in my head.

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