17/13-(7/11-9/13)等于怎么做?
5个回答
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17/13-(7/11-9/13)
=17/13-7/11+9/13
=17/13+9/13-7/11
=2-7/11
=15/11
=17/13-7/11+9/13
=17/13+9/13-7/11
=2-7/11
=15/11
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17/13-(7/11-9/13)
=17/13-7/11+9/13
=(17+9)/13-7/11
=26/13-7/11
=2-7/11
=1又4/11
=17/13-7/11+9/13
=(17+9)/13-7/11
=26/13-7/11
=2-7/11
=1又4/11
追答
17/13-(7/11-9/13)
=17/13-7/11+9/13
=(17+9)/13-7/11
=26/13-7/11
=2-7/11
=1又4/11
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17/13-(7/11-9/13)简便计算如下:
17/13-(7/11-9/13)
=17/13+9/13-7/11
=2-7/11
=22/11-7/11
=15/11
17/13-(7/11-9/13)
=17/13+9/13-7/11
=2-7/11
=22/11-7/11
=15/11
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17/13-(7/11-9/13)等于怎么做?
解:17/13-(7/11-9/13)
=17/13-7/11+9/13
=(17/3+9/13)-7/11
=26/13-7/11
=2-7/11
=1又4/11。
解:17/13-(7/11-9/13)
=17/13-7/11+9/13
=(17/3+9/13)-7/11
=26/13-7/11
=2-7/11
=1又4/11。
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