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Efectuați a 3 4/15 * 1 3/7; c 2 7/9 * 1 7/20; d 3 8/9 * 2 4/25 b 2/5 * 1/7/18 e 1 5/7 * 4 5/18 F4 1/5 * 3 3/14​

Răspuns :

Răspuns:

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