rozwiąż 10 całych podzielić na dwie trezcie razy 1cała i jedna drugiej
10:2/3x1 1/2=10x3/2x3/2=30/2x3/2=90/4=22 2/4=22 1/2
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10:2/3x1 1/2=10x3/2x3/2=30/2x3/2=90/4=22 2/4=22 1/2