Oblicz. Pamietaj o skracaniu . 1 1/2:1/4=3/2:1/4=3/2×4/1= 2 1/3:7/8 = 7/8:2 2/9= 4/9:2 2/9= 1 7/8: 2 1/2= 3 1/2:2 4/5= 1 2/3: 2 2/3=​