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Descopera trei fracti egale cu 3/2,1/4,4/8,2/5 si 7/9.

Răspuns :

2/3=6/9=12/18
1/4-2/8=4/16
4/8=8/16=16/36
2/5=10/25=16/40
7/9=14/18=21/27