Adu la acelas numitor 11/12 6/16 25/30

Răspuns :

12 = 2^2 × 3
16 = 2^4
30 = 2×5×3
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c.m.m.m.c = 2^4 × 3 × 5 = 240 (numitorul comun)

11/12 = 11×20/240 = 220/240
(am amplificat cu 20)

6/16 = 6×15/240 = 90/240
(am amplificat cu 15)

25/30 = 25×8/240 = 200/240
(am amplificat cu 8)