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4 Reconstituie lanturile de calcule. 2 1 1 7 3 7 7 + 2 7 - + 1 5 b) 2 + 5 - UN 4 9 + ON 2 9 a) 7 1

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4 Reconstituie Lanturile De Calcule 2 1 1 7 3 7 7 2 7 1 5 B 2 5 UN 4 9 ON 2 9 A 7 1 PLS CINEVA DAU COROANA class=

Răspuns :

Răspuns:

4/7-2/7=2/7+1/7=3/7+1/7=4/7-2/7=2/7
2/5 - 1/5 = 3/5 + 2/5 = 1 - 4/9 = 5/9 + 2/9 = 7/9