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3x10:6x5=
6x2:4x5=
4x4:4x5=


Răspuns :

30:30=1
12:20=0,6
16:20=0,8
3*10:6*5=30:30=1
6*2:4*5=12:20=0.6
4*4:4*5=16:20=0.8