Efectuati sumele :
3/4+5/3=
15/7+13/11=
3/13+1/11=
16/3+11/37=
11/5+3/7=
1/11+2/19=
3/5+1/23=
1intreg si 1/7+1intreg si 2/11

Dau 50 de puncte!
Repede va rog