Repede va rog dau coroana și inima

Răspuns:
2/3=4/6=8/12=10/15
3/7=9/21=15/35=30/70
5/8=10/16=20/32=40/64
9/2=27/6=36/8=45/10
1/5=2/10=3/15=4/20
8/3=16/6=24/9=32/12