va rog repede dau coroana

Răspuns:
3/4+5/3=8/7
11/5+3/7=14/12
15/7+13/11=28/18
1/11+5/19=6/30
3/13+1/11=4/24
3/5+1/23=4/28
16/3+11/37=27/40
sper ca team ajutat