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scrie ca suma de fractii, urmatoarele fractii: 2/2 ,3/3 si 4/4

Răspuns :

2/2+3/3=5/5
2/2+4/4=6/6
3/3+4/4=7/7
3/3+2/2+4/4=9/9
2/2=1/2+1/2
3/3=2/3+1/3
4/4=2/4+2/4