五分之四化成小数是多少

2025-03-15 08:37:47
推荐回答(4个)
回答1:

五分之四化成小数是0.8。

解析:五分之四是真分数,根据:真分数化成小数用分子除以分母即可。

五分之四

=4/5

=0.8

所以五分之四化成小数是0.8。

 扩展资料:

一:化为小数方法:

1、分子除以分母除得尽的小数叫有限小数,直接用分子除以分母即可。

2、分子除以分母除不尽的叫无限小数。无限小数分为无限不循环小数和无限循环小数。

3、无限不循环小数是指小数部分没有规律的小数。用分子除以分母,然后按照要求保留小数位就好了,一般情况下保留两位小数。

4、无限循环小数是指小数部分有规律(呈一定周期变化或者相同)的小数。对于这些小数在小数部分上方标注循环点。

二:小数化成分数方法:

1、将小数化为以10,100....为分母的分数。

2、约分。将分数约分成最简分数。

3、如果该分数是真分数(即分子比分母小),那么约分到最简就好了。但如果是假分数,有些题目可以直接保留,有些需要将其化为带分数。

4、假分数化为带分数,以假分数的分母为分母,然后用假分数的分子除以分母,商的整数部分写在左边,余数作为带分数的分子。

回答2:

五分之四化成小数是0.8
五分之四化成小数也就是4÷5=0.8
五分之四化成小数是0.8

回答3:

分数的计算含义其实就是除法,所以4/5=4÷5=0.8

回答4:

零点八

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