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Calculeaza L:
(13/5-3/5)-(4/6+7/6-5/6)+18/9=?

(1/3+2/4+3/5+4/6+5/7)x0+34-2/4+?

(1+4/2+9/3)-8/8=? Ajutati-ma!!!Dau 50 puncte la car ma ajuta corecT!!!