Respuesta :

julieqtip

Answer:

15 identical necklaces

Step-by-step explanation:

Say R stands for Red and B stands for Blue and N stands for Necklaces.

N x R = 45

N x B = 60

The common denominator of the two is 15.

N = 15, R = 3, and B = 4.
15 identical necklaces .

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