Report - Unidad Didáctica 2, Parte 21. 120 60 30 15 5 1 2223522235 140 70 35 7 1 22572257 120.= 2 3 x 3 x 5 140 = 2 2 x 5 x 7 m.c.d. (120 y 140) = 2 2 x 5 = 20.

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