分數!點計呢條

2007-03-23 6:33 am

2-(-2)/3=?? <<-(3分之-2)
仲有2- 6/3=??

步驟plz

回答 (5)

2007-03-23 9:12 am

2-(-2)/3=2+2/3=8/3
2- 6/3=2-2=0
2-(-2)/3

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2007-03-23 8:05 am

2-(-2)/3
=2+2/3
=8/3

2-6/3
=2-2
=0

參考: 自己

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2007-03-23 6:54 am

2-(-2)/3=2+2/3 因為負負得正
=6/3+2/3 通份母
=8/3
=2又3份2 假份數變帶份數
2- 6/3=6/3-6/3 通份母
=0

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2007-03-23 6:47 am

2-(-2)/3
=2+2/3
=2又2/3
=8/3,,

2- 6/3
=2-2
=0

參考: 自己

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2007-03-23 6:37 am

2-(-2)/3=2+2/3=8/3
2- 6/3=2-2=0

2007-03-22 22:38:51 補充：
2-(-2)/3

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