Mariairinatoderascid Mariairinatoderascid Matematică a fost răspuns Efectuează:a) 1/2+2/3, b) 2/3+4/5,c)2/9+5/8, d) 3/11+7/10,e)5/7+3/4,f)11/9-9/10,g)13/20+21/23,h) 2/13+5/26,i)7/10+13/100,j)8/25+12/50,k)9/36+5/72.Va rogg!