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11-b,c..mă puteți ajuta?E urgentt

11bcmă Puteți AjutaE Urgentt class=

Răspuns :

15/18-11/12+29/9-16/6=(30-33+116-96)/36=17/36
c.m.m.m.c=36

29/30-23/90+27/5-28/90=(3x29-23+27x18-28)/90=522/90=58/10=29/5
c.m.m.m.c.=90