Respuesta :

Answer:

3

Step-by-step explanation:

Denominators

1/3= 2/3, 1, 1 1/3, 1 2/3, 2, 2 1/3, 2 2/3, 3

3/7= 6/7, 1 2/7, 1 5/7, 2 1/7, 2 4/7, 3

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