急...................................
回答 (8)
2007-07-04 9:56 pm
=3.075
2007-07-04 1:23 am
3又４0份之3
3+４0份之3
=3+0.075
=3.075
3+４0份之3
=3+0.075
=3.075
2007-07-03 1:03 am
3
3 ---------
40
3
=3 + --------
40
3 x 2.5
=3 + ---------------
40 x 2.5
7.5
=3 + ----------
100
75
=3 + ----------
1000
=3.075
3 ---------
40
3
=3 + --------
40
3 x 2.5
=3 + ---------------
40 x 2.5
7.5
=3 + ----------
100
75
=3 + ----------
1000
=3.075
2007-07-02 11:55 pm
把它除起來便行了。首先把整數3寫下來，再把分子3除分母40，得0.075，加起來便是3.075。
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原文連結 [永久失效]:
https://hk.answers.yahoo.com/question/index?qid=20070702000051KK01875