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x/x-y+y/y-x怎么化简？

来源：百度知道编辑：UC知道时间：2024/07/07 11:51:18

需要步骤，感谢！

x/x-y+y/y-x
=x/(x-y)-y/(x-y)
=(x-y)/(x-y)
=1

你是不是应该写成这样：X/(X-Y)+Y/(Y-X)
解：
X/(X-Y)+Y/(Y-X)
=X/(X-Y)-Y/(X-Y)
=(X-Y)/(X-Y)
=1

x/(x-y)+y/(y-x)=x/(x-y)-y/(x-y)=(x-y)/(x-y)=1

呵呵好久没有见过这样的题目了好熟悉好亲切呵呵想到我读书的时候了呵呵

x/x-y+y/y-x=x/(x-y)-y/(x-y)=(x-y)/(x-y)
=1

x/x-y+y/y-x
=x/(x-y)-y/(x-y)
=(x-y)/(x-y)
=1

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