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aratati ca (1\2+1\5)*20\7=2

Răspuns :

Salut,

(1/2+1/5)•20/7 = 2
(5/10+2/10)•20/7 = 2
7/10•20/7 = 2
2 = 2 (A)


Succes! :3
(1\2+1\5)*20\7=2
(5+2)/10*20/7=2
7/10*20/7=2, simplificam 7 cu 7 si 10 cu 20
2=2
q.e.d.