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3:8=
()()
=
3
3
÷
8
8
=12:
32
32
=
9
9
:24=
0.375
0.375
小数.
分析:解决此题关键在于3:8,3:8用比的前项3做分子,比的后项8做分母可化成分数
3
8
;3:8用比的前项3做被除数,比的后项8做除数可化成3÷8;3:8的前项和后项同时乘4可化成
12:32;3:8的前项和后项也可以同时乘3可化成9:24;3:8用比的前项除以后项得比值0.375;由此进行转化并填空.
解答:解:3:8=
3
8
=3÷8=12:32=9:24=0.375;
故答案为:
3
8
,3,8,32,9,0.375.
点评:此题考查比、分数、除法、和小数之间的转化,根据它们之间的关系和性质进行转化.
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