Vă rog dau coroana!

Răspuns:
2/9+1/9=3/9
4/9+1/9=5/9
2/9+8/9=10/9
4/9+8/9=12/9
25/100-5/100=20/100
100/100-5/100=95/100
25/100-20/100=5/100
100/100-20/100=80/100