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(2,2-4/5)×10/7×(5,2-12/5)+4/5=
Dau coronita!!


Răspuns :

(22/10-4/5)×10/7×(52/10-12/5)+4/5 = (22/10-8/10)×10/7×(52/10-24/10)+4/5= 14/10×10/7×28/10+4/5 = 2×28/10+4/5 = 56/10+4/5 = 5,6+8/10 = 5,6 +0,8 = 6,4
 este egal cu 56impartit la10 egal cu 5,6