Natalia

EJ 1=3/7+4/5+6/2:210/70+56/70+30/70=296/70              EJ2=4/3+6/8+7/9:288/216+162/216+168/216=618/216 EJ3=3/6+5/10+8/4:120/240+120/240+480/240=720/240 EJ4=2/6+4/12+10/5:120/360+120/360+720/360=960/360 EJ5=7/2+5/7+11/10:154/140+490/140+100/140=744/140