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alcatuiti si rezolvati 5 inmultiri cu fractii

Răspuns :

5/3 x 6/15=3/3=1
2/6 x 2/2= 3
9/10 x 30/54=3/6=1/2
10/2 x 10/2=25
1/2 x 4/2=2/2=1