Va rog e urgentttt
Primului îi dau coroana +10puncte
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2/4+1/2= 2/4 + 2/4 =4/4=1
1/2-1/5= 5/10 - 2/10 =3/10
1-3/4= 4/4-3/4 =1/4
1/4 + 1/2 = 1/4 + 2/4 = 3/4
6/8 + 1/4= 6/8 + 2/8 = 8/8 = 1
2/3 - 3/5= 10/15 - 9/15= 1/15
2 + 2/3 = 6/3 + 2/3 = 8/3
2/5 +5/10= 4/10 + 5/10 = 9/10