Podziel wszystkie działania i napisz je całe 2/3:1/2= 1 3/7:6= 1 4/9:3 1/3= 1/6:2= 1/15:2/7= 4/9:2/3=
2/3:1/3=2/3*3/1=2*1=2
1 3/7:6= 10/7*1/6= 5/7*1/3=5/21
1 4/9:3 1/3= 13/9:10/3=13/9*3/10=13/3*1/10=13/30
1/6:2=1/6*1/2=1/12
1/15:2/7=1/15*7/2=7/30
4/9:2/3=4/9*3/2=2/3*1=2/3
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2/3:1/3=2/3*3/1=2*1=2
1 3/7:6= 10/7*1/6= 5/7*1/3=5/21
1 4/9:3 1/3= 13/9:10/3=13/9*3/10=13/3*1/10=13/30
1/6:2=1/6*1/2=1/12
1/15:2/7=1/15*7/2=7/30
4/9:2/3=4/9*3/2=2/3*1=2/3