0.75m:25cm化成最简整数比是________,比值是________.

发布时间:2020-08-08 08:07:22

0.75m:25cm化成最简整数比是________,比值是________.

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3:1    3
解析分析:(1)先把0.75m化为75cm,再根据比的基本性质作答,即比的前项和后项同时乘一个数或除以一个数(0除外)比值不变;
(2)先把0.75m化为75cm,再用比的前项除以后项即可.

解答:(1)0.75m:25cm,
=75cm:25cm,
=75:25,
=(75÷25):(25÷25),
=3:1,(2)0.75m:25cm,
=75cm÷25cm,
=75÷25,
=3;
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