分数的乘除运算及分数与小数的互化.docx

分数的乘除运算及分数与小数的互化.docx

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分数的乘除运算及分数与小数的互化

分数的乘除运算及分数与小数的互化

　　一、基础概念

　　分数的乘法

　　两个分数相乘,将分子相乘的积作积的分子,分母相乘的积作积的分母.

　　如果含有带分数,应先把带分数化为假分数.

　　整数与分数相乘,整数与分数的分子的积作积的分子,分母不变.分数的除法

　　1除以一个不为零的数得到的商，叫做这个数的倒数。

　　1qp,0a的倒数是（a）,的倒数是。

（0,0）pq,,aqp

　　互为倒数的两个数的乘积是1.

　　甲数除以乙数（0除外），等于甲数乘以乙数的倒数。

即:

mpmq,,，,,,（0,0,0）npqnqnp

　　如果含有带分数，先将带分数化为假分数，再运算。

分数与小数的互化

　　一个最简分数，如果分母中只含有素因数2和5，再无其他素因数，那么这个分数可化为有限小数，否则就不能化为有限小数。

一个小数从小数部分的某一位起，一个数字或几个数字依次不断的重复出现，这个小数叫做循环小数。

　　一个循环小数的小数部分中依次不断的重复出现的第一个最少的数字组，叫做这个循环小数的循环节。

　　二、基础练习

　　andactualcasewhethermatch;byislocatedlandrightnature;propertystatus,whetherhasdamageorqualityproblem;propertyusingsituation,rentaloruse;referencearoundsimilarpropertyprice,judgeassessmentvalueofrationality;whetherexistspropertydisputes,andseized,andfreeze,andmortgage,anddemolition,andtransformation,limitsituation.2.tolandrightmortgageof,surveypeopleshouldverifiedfollowinginformation:

landrightcardbycontainsMinginformation（rightpeople,andlocation,andnature,andterm,andarea,）andactualcasewhethermatch;landnature;landflatsituation;groundbuildingssituation;referencearoundsimilarlandprice,judgeassessmentvalueofrationality;mortgagerealwhetherhasothermortgagerightornoticeregistrationestablishedprior;whetherexistspropertydisputes,andseized,andfreeze,andmortgage,limitsituation.3.otherchattels,ownership,thevalueofthemortgageshouldbeimplemented,andwhetherfactorssuchaseasyhandling.（C）pledgeofcollateralinvestigationprocedures,investigatorsshouldenforcecollateralvalue,conveniencecustodyanddisposition,pledgerightseffectiveidentification,registration,etc.（D）guaranteeinvestigationtoensurethattheprocedures,theinvestigationshall,inaccordancewiththeborrower'sstandardstoinvestigatetheguarantorevaluationassurance.15thinformationauditsurveypeopledealwithborrowersandqualificationprovidedbytheguarantor,financialstatus,proofofidentity,theauthenticityofthedatacarefullyreviewed,verified,rationalityandeffectiveness.Include:

（a）theborrowerdataauditing1.corporateclientsshouldfocusonassessingvarioustypesoflicenses,certificates,financialreporting,powersofAttorneyandothertextandarealplearelatedinformation.2.smallbusinessclasscustomersalsoshouldfocusonthereviewoftheborrowertoprovideevidenceofbusiness,financialpositionandactualcontrolofcredit,property,andmore

　　直接写得数。

　　1125733×0=×=×12=×=45×=345612145

　　7294149×=×=×100=18×=×183102561111=4

　　　　用简便方法计算:

　　714636（-）×60×+×125713713

　　　　3227225×8×（15×）×8272815

　　　　应用题。

　　（一桶油10千克，用去这桶油的4/5，用去了多少千克,1

　　　　2（育民小学有男同学840人，女同学人数是男同学的4/7，这个学校有女同学多少人,

　　　　3（一堆煤12吨，又运来它的1/4，又运来的煤是多少吨,

　　　　4（教师公寓有三居室180套，二居室的套数是三居室的2/3，一居室的套数是二居室的1/4。

教师公寓有一居室多少套,

　　　　5（阳光小学有男生750人，女生人数是男生的4/5，这个学校有女生多少人,一共有学生多少人,

　　　　andactualcasewhethermatch;byislocatedlandrightnature;propertystatus,whetherhasdamageorqualityproblem;propertyusingsituation,rentaloruse;referencearoundsimilarpropertyprice,judgeassessmentvalueofrationality;whetherexistspropertydisputes,andseized,andfreeze,andmortgage,anddemolition,andtransformation,limitsituation.2.tolandrightmortgageof,surveypeopleshouldverifiedfollowinginformation:

landrightcardbycontainsMinginformation（rightpeople,andlocation,andnature,andterm,andarea,）andactualcasewhethermatch;landnature;landflatsituation;groundbuildingssituation;referencearoundsimilarlandprice,judgeassessmentvalueofrationality;mortgagerealwhetherhasothermortgagerightornoticeregistrationestablishedprior;whetherexistspropertydisputes,andseized,andfreeze,andmortgage,limitsituation.3.otherchattels,ownership,thevalueofthemortgageshouldbeimplemented,andwhetherfactorssuchaseasyhandling.（C）pledgeofcollateralinvestigationprocedures,investigatorsshouldenforcecollateralvalue,conveniencecustodyanddisposition,pledgerightseffectiveidentification,registration,etc.（D）guaranteeinvestigationtoensurethattheprocedures,theinvestigationshall,inaccordancewiththeborrower'sstandardstoinvestigatetheguarantorevaluationassurance.15thinformationauditsurveypeopledealwithborrowersandqualificationprovidedbytheguarantor,financialstatus,proofofidentity,theauthenticityofthedatacarefullyreviewed,verified,rationalityandeffectiveness.Include:

（a）theborrowerdataauditing1.corporateclientsshouldfocusonassessingvarioustypesoflicenses,certificates,financialreporting,powersofAttorneyandothertextandarealplearelatedinformation.2.smallbusinessclasscustomersalsoshouldfocusonthereviewoftheborrowertoprovideevidenceofbusiness,financialpositionandactualcontrolofcredit,property,a