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completeaza astfel incat fractiile sa fie egale 4/3=12/9=8/? =?/21=40/?
7/6=?/18=98/?=14/?=?/102=?/12


Răspuns :

4/3=12/9=8/6=28/21=40/30
7/6=21/18=98/84=14/12=119/102=14/12