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81 : 9 = ? : ?
14 : ? =49: ?
80: ? = ? : 10


Răspuns :

81: 9 = 27 : 3 14:2= 49:7 80:10 = 80:10
81: 9 = 27 : 3
14:2= 49:7
80:10 = 80:10