Question

Aflati numerele naturale a si b astfel incat fiecare din urmatoarele egalitati sa fie adevarata:a)2/7=b/14 b)5/6=a+2/18 c)11/a=33/6 d)2a+1/20=22/40 dau coroanaaaaa

Answer 1

2/7=4/14(a=4). 5/6=15/18(a=13). 11/2=33/6(a=2). 11\20=22/40(a=5). coroana ??