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3/5+2/5=
1/6+2/6=
3/9+2/9=
7/10-1/10=
2/7-2/7=


Răspuns :

5/5 ; 3/6 ; 5/9 ; 6/10; 0/7
răspuns:
5/5=1
3/6=1/2
5/9
6/10=3/5
0/7