把连比化为最简整数比:
(1)2:4:8=______;
(2)18:27:45=______;
(3)=______;
(4)=______;
(5)0.3:0.15:0.45=______;
(6)1.6:2.4:4=______.
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解:(1)2:4:8,
=(2÷2):(4÷2):(8÷2),
=1:2:4;
(2)18:27:45,
=(18÷6):(27÷9):(45÷9),
=2:3:5;
(3),
=():():(×6),
=3:2:1;
(4),
=(×8):(×8):(1×8);
=9:5:8;
(5)0.3:0.15:0.45,
=(0.3×):(0.15×):(0.45×),
=2:1:3;
(6)1.6:2.4:4,
=(1.6×):(2.4×):(4×),
=2:3:5.
故