Răspuns :
/----------------------------------/ 8 cm /----------------/------------------/ 1/2(jumatate) /-------/---------//-----------/---------/ 2/4=jumatate=1/2
segmentul: /____________________________/ 8 cm
1/2: /_____________/_______________/ 8 : 2 = 4
3/4: /_______/______/_______/_______/ 8 : 4 = 2
1/2: /_____________/_______________/ 8 : 2 = 4
3/4: /_______/______/_______/_______/ 8 : 4 = 2