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1、假分数化成整数 或带分数Evaluation only.Evaluation only. Created with Aspose.Slides for .NET 3.5 Client Profile 5.2.0.0.Created with Aspose.Slides for .NET 3.5 Client Profile 5.2.0.0. Copyright 2004-2011 Aspose Pty Ltd.Copyright 2004-2011 Aspose Pty Ltd.1.探索并掌握把假分数化成整数或带分 数的方法，知道带分数是整数和真分数 合成的数。 2.在探索中，进一步发展数感，
2、培养观 察、比较、抽象、概括等能力。 3.在探索与合作交流的过程中，增强大 家主动探索与合作的意识，树立学好数 学的信心。培养大家勤于动手动脑的良 好习惯。引导大家热爱生活，关注身边 的每个事物。教学目标:Evaluation only.Evaluation only. Created with Aspose.Slides for .NET 3.5 Client Profile 5.2.0.0.Created with Aspose.Slides for .NET 3.5 Client Profile 5.2.0.0. Copyright 2004-2011 Aspose Pty Ltd.Co
3、pyright 2004-2011 Aspose Pty Ltd.复习导入：看下面的图形,填上适 当的分数。( )有( )个 ( )1( )有( )个1( )8558477 4good！Evaluation only.Evaluation only. Created with Aspose.Slides for .NET 3.5 Client Profile 5.2.0.0.Created with Aspose.Slides for .NET 3.5 Client Profile 5.2.0.0. Copyright 2004-2011 Aspose Pty Ltd.Copyright 20
4、04-2011 Aspose Pty Ltd.把下面的假分数化成整数4 4=( )10 5=( )28 7=( )124Evaluation only.Evaluation only. Created with Aspose.Slides for .NET 3.5 Client Profile 5.2.0.0.Created with Aspose.Slides for .NET 3.5 Client Profile 5.2.0.0. Copyright 2004-2011 Aspose Pty Ltd.Copyright 2004-2011 Aspose Pty Ltd.能化成整数的假分数，
5、分子都是分母的倍数。 Evaluation only.Evaluation only. Created with Aspose.Slides for .NET 3.5 Client Profile 5.2.0.0.Created with Aspose.Slides for .NET 3.5 Client Profile 5.2.0.0. Copyright 2004-2011 Aspose Pty Ltd.Copyright 2004-2011 Aspose Pty Ltd.有些假分数的分子不是分母倍数，这些假分数可以化成带分数。 Evaluation only.Evaluation onl
6、y. Created with Aspose.Slides for .NET 3.5 Client Profile 5.2.0.0.Created with Aspose.Slides for .NET 3.5 Client Profile 5.2.0.0. Copyright 2004-2011 Aspose Pty Ltd.Copyright 2004-2011 Aspose Pty Ltd.例如:4 33 31 3(就是1)1 31一又三分之一Evaluation only.Evaluation only. Created with Aspose.Slides for .NET 3.5
7、Client Profile 5.2.0.0.Created with Aspose.Slides for .NET 3.5 Client Profile 5.2.0.0. Copyright 2004-2011 Aspose Pty Ltd.Copyright 2004-2011 Aspose Pty Ltd.0124 33个1 31 311 3Evaluation only.Evaluation only. Created with Aspose.Slides for .NET 3.5 Client Profile 5.2.0.0.Created with Aspose.Slides fo
8、r .NET 3.5 Client Profile 5.2.0.0. Copyright 2004-2011 Aspose Pty Ltd.Copyright 2004-2011 Aspose Pty Ltd.怎样把 化成带分数?11 4 Evaluation only.Evaluation only. Created with Aspose.Slides for .NET 3.5 Client Profile 5.2.0.0.Created with Aspose.Slides for .NET 3.5 Client Profile 5.2.0.0. Copyright 2004-2011
9、Aspose Pty Ltd.Copyright 2004-2011 Aspose Pty Ltd.怎样把 化成带分数?11 4里有11个 。8个 是2，3个 是 ，2和 合起来是2 。11 41 41 41 43 43 43 4Evaluation only.Evaluation only. Created with Aspose.Slides for .NET 3.5 Client Profile 5.2.0.0.Created with Aspose.Slides for .NET 3.5 Client Profile 5.2.0.0. Copyright 2004-2011 Aspos
10、e Pty Ltd.Copyright 2004-2011 Aspose Pty Ltd.怎样把 化成带分数?11 4直接用除法计算：=114=211 43 4Evaluation only.Evaluation only. Created with Aspose.Slides for .NET 3.5 Client Profile 5.2.0.0.Created with Aspose.Slides for .NET 3.5 Client Profile 5.2.0.0. Copyright 2004-2011 Aspose Pty Ltd.Copyright 2004-2011 Aspos
11、e Pty Ltd.（ ）=（ ） 练习九第2题：7 31 32Evaluation only.Evaluation only. Created with Aspose.Slides for .NET 3.5 Client Profile 5.2.0.0.Created with Aspose.Slides for .NET 3.5 Client Profile 5.2.0.0. Copyright 2004-2011 Aspose Pty Ltd.Copyright 2004-2011 Aspose Pty Ltd.（ ）=（ ） 11 615 6练习九第2题：Evaluation only
12、.Evaluation only. Created with Aspose.Slides for .NET 3.5 Client Profile 5.2.0.0.Created with Aspose.Slides for .NET 3.5 Client Profile 5.2.0.0. Copyright 2004-2011 Aspose Pty Ltd.Copyright 2004-2011 Aspose Pty Ltd.练习九第3题：先把假分数化成带分数， 再读一读。11 218 519 741 450 923 3Evaluation only.Evaluation only. Crea
13、ted with Aspose.Slides for .NET 3.5 Client Profile 5.2.0.0.Created with Aspose.Slides for .NET 3.5 Client Profile 5.2.0.0. Copyright 2004-2011 Aspose Pty Ltd.Copyright 2004-2011 Aspose Pty Ltd.11 2=51 218 5=33 519 7=25 741 4=101 450 9=55 923 3=72 3Evaluation only.Evaluation only. Created with Aspose
14、.Slides for .NET 3.5 Client Profile 5.2.0.0.Created with Aspose.Slides for .NET 3.5 Client Profile 5.2.0.0. Copyright 2004-2011 Aspose Pty Ltd.Copyright 2004-2011 Aspose Pty Ltd.0123453 36 312 35 39 313 315 32 311 321 332 34Evaluation only.Evaluation only. Created with Aspose.Slides for .NET 3.5 Cli
15、ent Profile 5.2.0.0.Created with Aspose.Slides for .NET 3.5 Client Profile 5.2.0.0. Copyright 2004-2011 Aspose Pty Ltd.Copyright 2004-2011 Aspose Pty Ltd.1=( ) 11=( ) 22=( ) 33=( )412612Evaluation only.Evaluation only. Created with Aspose.Slides for .NET 3.5 Client Profile 5.2.0.0.Created with Aspos
16、e.Slides for .NET 3.5 Client Profile 5.2.0.0. Copyright 2004-2011 Aspose Pty Ltd.Copyright 2004-2011 Aspose Pty Ltd.把下面假分数化成整数或带分数。假分数怎样化成整数或带分数?说一说:4 311 921 290 4548 895 9= 2= 6= 131= 192= 1021= 1095Evaluation only.Evaluation only. Created with Aspose.Slides for .NET 3.5 Client Profile 5.2.0.0.Created with Aspose.Slides for .NET 3.5 Client Profile 5.2.0.0. Copyright 2004-2011 Aspose
