设加x
所以有
(1991+x)/(1993+x)=1994/1995
1995(1991+x)=1994(1993+x)
3972045+1995x=3974042+1994x
x=1997
分数1993分1991的分子分毋同加上一个多大的整数,使新分数是1995分1994
分数1993分1991的分子分毋同加上一个多大的整数,使新分数是1995分1994
其他人气:357 ℃时间:2019-08-25 04:39:14
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