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calcati scotand factor comun a) 3/7*77+2/5*77 b)3*5+3*1/4+3*17/16 c)2/5*7+3*7-7*12/5 d)3/19*3/7+3/19*4/7 e)2/23*3/5-2/5*3/46 f)5*7/11+5*3/22-5*1/2 ​

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Vezi imaginea SYM79