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Rapid am nevoie de amandoua dau coroana

Rapid Am Nevoie De Amandoua Dau Coroana class=

Răspuns :

(3/14 - 4/21 +5/28)x(-24/7) =( 18-16+15 //84 )x(-24/7) = 17/84 x -24/7 =17/21 x -6/7= -102/147

(1/3 x 39/4 -17/5) : -6/5 = (39/12-17/5) x -5/6 = (195-204  //60) x -5/6 = -9/60 x -5/6 = 3/20 x 5/6 =1/8