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9 4/5zł:1 3/4kg=
49/5zł:7/4kg=
49/5zł*4/7kg=
196/35zł/kg=
5 21/35zł/kg=
5,6zł/kg
1,75=9,8
1 = ?
9,8x1:1,75 = 5,6
Odp: Kilo winogrona kosztuje 5zł 60 gr