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240, 3600, 12, 72, 120
wiersz drugi 2/3 liczby
160, 2400, 8, 48, 80
wiersz trzeci 3/4 liczby
180, 2700, 9, 54, 90
obliczenia:
2/3*240 = 160
2/3*3600 = 2400
3/4*240 = 180
3/4*3600 = 2700
9: 3/4 = 9*4/3 = 12
2/3*12 = 8
48:2/3 = 48*3/2 = 72
3/4*72 = 54
90:3/4 = 90*4/3 = 120
2/3*120 = 80