Respuesta:
Explicación paso a paso:
1) = 8 /5 + 3 / 7 = 71 / 35
2) = 13 / 7 - 1 / 9 = 110 / 63
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Respuesta:
Explicación paso a paso:
1) = 8 /5 + 3 / 7 = 71 / 35
2) = 13 / 7 - 1 / 9 = 110 / 63