2÷3=2/3;3÷5 =3/5;通分后:2/3=10/15,3/5=9/15 所以 2/3>3/5
3÷4=3/4;5÷8 =5/8;通分后:3/4=6/8,3/4>5/8
7÷6=7/6;6÷5 =6/5;通分后:7/6=35/30,6/5 =36/30 所以 7/6<6/5
2÷3=2/3;3÷5 =3/5;通分后:2/3=10/15,3/5=9/15 所以 2/3>3/5
3÷4=3/4;5÷8 =5/8;通分后:3/4=6/8,3/4>5/8
7÷6=7/6;6÷5 =6/5;通分后:7/6=35/30,6/5 =36/30 所以 7/6<6/5