ATI TEAS 7 FULL STUDY GUIDE
MATH
TheMtopMnumberMofMaMfractionMisMtheM__________________________.M-
MAnswerMnumerator
TheMbottomMnumberMofMaMfractionMisMtheM__________________________.M-
MAnswerMdenominator
WhatMisMaMproperMfraction?M-
MAnswerMAMfractionMwhereMtheMnumeratorMisMsmallerMthanMtheMdenominator.
WhatMisManMimproperMfraction?M-
MAnswerMAMfractionMwhereMtheMnumeratorMisMlargerMthanMtheMdenominator.
WhatMcanManMimproperMfractionMbeMchangedMto?M-MAnswerMAMmixedMnumber.
WhatMisMaMmixedMnumber?M-
MAnswerMAMmixedMnumberMisMaMwholeMnumberMandMaMproperMfraction.
HowMdoMyouMchangeManMimproperMfractionMtoMaMmixedMnumber?M-
MAnswerMDivideMtheMdenominatorMintoMtheMnumerator.MTheMresultMisMtheMwholeMnu
mber.MTheMremainderMisMtheMnumeratorMofMtheMproperMfraction,MandMtheMvalueMofM
theMdenominatorMdoesMnotMchange.M
Example:M5/2MisM2M1/2MbecauseM2MgoesMintoM5MtwiceMwithMaMremainderMofM1.
HowMdoMyouMchangeMaMmixedMnumberMtoManMimproperMfraction?M-
MAnswerMMultiplyMtheMwholeMnumberMbyMtheMdenominatorMandMaddMtheMresultMtoM
theMnumerator.MTheMresultsMbecomeMtheMnewMnumerator.M
Example:M2M1/2MisM5/2MbecauseM2MtimesM2MplusM1MisM5MforMtheMnewMnumerator.
WhatMisMtheMleastMcommonMdenominator?M-
MAnswerMTheMsmallestMnumberMthatMcanMbeMdividedMevenlyMintoMtheMdenominatorsM
ofMallMfractionsMbeingMcompared.
,HowMdoMyouMchangeMaMdecimalMtoMaMfraction?M-
MAnswerM1.MWriteMtheMdecimalMdividedMbyM1MwithMtheMdecimalMasMtheMnumeratorM
andM1MasMtheMdenominator.M
2.MMultiplyMtheMnumeratorMandMdenominatorMbyM10MforMeveryMnumberMafterMtheMde
cimalMpoint.M
Example:MifMthereMisM1MdecimalMplace,MmultiplyMbyM10.MIfMthereMareM2MdecimalMplac
es,MmultiplyMbyM100.M
3.MReduceMtheMfractionMcompletely.M
Example:M0.37
1.M0.37/1
2.M0.37MxM100/1MxM100M=M37/100
3.M37/100M(thisMfractionMdoesMnotMreduce)
StepsMtoMchangingMaMfractionMtoMaMdecimal.M-
MAnswerM1.MdivideMtheMnumeratorMbyMtheMdenominator.MAddMzerosMafterMtheMdecim
alMpointMasMneeded.M
2.McompleteMtheMprocessMwhenMthereMisMnoMremainderMorMtheMdecimalMisMrepeating.
2MwaysMtoMconvertMaMdecimalMtoMaMpercent.M-
MAnswerM1.MmultiplyMtheMdecimalMbyM100MandMaddMaMpercentMsign.
2.MmoveMtheMdecimalMpointM2MplacesMtoMtheMright.
2MwaysMtoMconvertMaMpercentMtoMaMdecimal.M-
MAnswerM1.MremoveMtheMpercentMsignMandMdivideMtheMdecimalMbyM100.M
2.MmoveMtheMdecimalMpointM2MplacesMtoMtheMleft.
StepsMtoMchangeMaMfractionMtoMaMpercent.M-
MAnswerM1.MdivideMtheMnumeratorMandMdenominator.
2.MmultiplyMbyM100MandMaddMaMpercentMsign.
, StepsMtoMchangeMaMpercentMtoMaMfraction.M-
MAnswerM1.MRemoveMtheMpercentMsignMandMwriteMtheMvalueMasMtheMnumeratorMwith
MaMdenominatorMofM100.M
2.MSimplifyMtheMfraction.
TermMforMfractionsMwithMtheMsameMdenominator.M-MAnswerMLikeMfractions.
HowMdoMyouMaddMlikeMfractions?M-MAnswerMAddMtheMnumerators.M
Example:M2/5M+M1/5M=M3/5
HowMdoMyouMsubtractMlikeMfractions?M-MAnswerMSubtractMtheMnumerators.M
Example:M8/9M-M2/9M=M6/9M=M2/3
StepsMtoMaddingMorMsubstractingMfractionsMwithoutMlikeMdenominators.M-
MAnswerM1.MfindMtheMlowestMcommonMdenominatorM(theMlowestMcommonMmultiple).
2.MconvertMtheMLCDMbyMmultiplyingMtheMfractionMbyMtheMnecessaryMnumericalMvalueM
writtenMasMaMfractionMequalMtoM1.M
3.MAddMorMsubtractMtheMnumerators.
HowMtoMmultiplyMfractions.M-MAnswerM1.MmultiplyMtheMnumeratorsMtogether.M
2.MmultiplyMtheMdenominatorsMtogether.
StepsMtoMmultiplyMaMfractionMbyMaMwholeMnumber.M-
MAnswerM1.MchangeMtheMwholeMnumberMtoMaMfractionMwithMaMdenominatorMofM1.M
2.MmultiplyMtheMnumeratorsMtogether.M
3.MmultiplyMtheMdenominatorsMtogether.M
4.MrewriteMtheMfinalManswerMasMaMmixedMnumber.
StepsMtoMmultiplyMaMfractionMbyMaMmixedMnumberMorMmultiplyingM2MmixedMnumbers.
M-MAnswerM1.MchangeMtheMmixedMnumberMtoManMimproperMfraction.M
2.MmultiplyMtheMnumerators.
MATH
TheMtopMnumberMofMaMfractionMisMtheM__________________________.M-
MAnswerMnumerator
TheMbottomMnumberMofMaMfractionMisMtheM__________________________.M-
MAnswerMdenominator
WhatMisMaMproperMfraction?M-
MAnswerMAMfractionMwhereMtheMnumeratorMisMsmallerMthanMtheMdenominator.
WhatMisManMimproperMfraction?M-
MAnswerMAMfractionMwhereMtheMnumeratorMisMlargerMthanMtheMdenominator.
WhatMcanManMimproperMfractionMbeMchangedMto?M-MAnswerMAMmixedMnumber.
WhatMisMaMmixedMnumber?M-
MAnswerMAMmixedMnumberMisMaMwholeMnumberMandMaMproperMfraction.
HowMdoMyouMchangeManMimproperMfractionMtoMaMmixedMnumber?M-
MAnswerMDivideMtheMdenominatorMintoMtheMnumerator.MTheMresultMisMtheMwholeMnu
mber.MTheMremainderMisMtheMnumeratorMofMtheMproperMfraction,MandMtheMvalueMofM
theMdenominatorMdoesMnotMchange.M
Example:M5/2MisM2M1/2MbecauseM2MgoesMintoM5MtwiceMwithMaMremainderMofM1.
HowMdoMyouMchangeMaMmixedMnumberMtoManMimproperMfraction?M-
MAnswerMMultiplyMtheMwholeMnumberMbyMtheMdenominatorMandMaddMtheMresultMtoM
theMnumerator.MTheMresultsMbecomeMtheMnewMnumerator.M
Example:M2M1/2MisM5/2MbecauseM2MtimesM2MplusM1MisM5MforMtheMnewMnumerator.
WhatMisMtheMleastMcommonMdenominator?M-
MAnswerMTheMsmallestMnumberMthatMcanMbeMdividedMevenlyMintoMtheMdenominatorsM
ofMallMfractionsMbeingMcompared.
,HowMdoMyouMchangeMaMdecimalMtoMaMfraction?M-
MAnswerM1.MWriteMtheMdecimalMdividedMbyM1MwithMtheMdecimalMasMtheMnumeratorM
andM1MasMtheMdenominator.M
2.MMultiplyMtheMnumeratorMandMdenominatorMbyM10MforMeveryMnumberMafterMtheMde
cimalMpoint.M
Example:MifMthereMisM1MdecimalMplace,MmultiplyMbyM10.MIfMthereMareM2MdecimalMplac
es,MmultiplyMbyM100.M
3.MReduceMtheMfractionMcompletely.M
Example:M0.37
1.M0.37/1
2.M0.37MxM100/1MxM100M=M37/100
3.M37/100M(thisMfractionMdoesMnotMreduce)
StepsMtoMchangingMaMfractionMtoMaMdecimal.M-
MAnswerM1.MdivideMtheMnumeratorMbyMtheMdenominator.MAddMzerosMafterMtheMdecim
alMpointMasMneeded.M
2.McompleteMtheMprocessMwhenMthereMisMnoMremainderMorMtheMdecimalMisMrepeating.
2MwaysMtoMconvertMaMdecimalMtoMaMpercent.M-
MAnswerM1.MmultiplyMtheMdecimalMbyM100MandMaddMaMpercentMsign.
2.MmoveMtheMdecimalMpointM2MplacesMtoMtheMright.
2MwaysMtoMconvertMaMpercentMtoMaMdecimal.M-
MAnswerM1.MremoveMtheMpercentMsignMandMdivideMtheMdecimalMbyM100.M
2.MmoveMtheMdecimalMpointM2MplacesMtoMtheMleft.
StepsMtoMchangeMaMfractionMtoMaMpercent.M-
MAnswerM1.MdivideMtheMnumeratorMandMdenominator.
2.MmultiplyMbyM100MandMaddMaMpercentMsign.
, StepsMtoMchangeMaMpercentMtoMaMfraction.M-
MAnswerM1.MRemoveMtheMpercentMsignMandMwriteMtheMvalueMasMtheMnumeratorMwith
MaMdenominatorMofM100.M
2.MSimplifyMtheMfraction.
TermMforMfractionsMwithMtheMsameMdenominator.M-MAnswerMLikeMfractions.
HowMdoMyouMaddMlikeMfractions?M-MAnswerMAddMtheMnumerators.M
Example:M2/5M+M1/5M=M3/5
HowMdoMyouMsubtractMlikeMfractions?M-MAnswerMSubtractMtheMnumerators.M
Example:M8/9M-M2/9M=M6/9M=M2/3
StepsMtoMaddingMorMsubstractingMfractionsMwithoutMlikeMdenominators.M-
MAnswerM1.MfindMtheMlowestMcommonMdenominatorM(theMlowestMcommonMmultiple).
2.MconvertMtheMLCDMbyMmultiplyingMtheMfractionMbyMtheMnecessaryMnumericalMvalueM
writtenMasMaMfractionMequalMtoM1.M
3.MAddMorMsubtractMtheMnumerators.
HowMtoMmultiplyMfractions.M-MAnswerM1.MmultiplyMtheMnumeratorsMtogether.M
2.MmultiplyMtheMdenominatorsMtogether.
StepsMtoMmultiplyMaMfractionMbyMaMwholeMnumber.M-
MAnswerM1.MchangeMtheMwholeMnumberMtoMaMfractionMwithMaMdenominatorMofM1.M
2.MmultiplyMtheMnumeratorsMtogether.M
3.MmultiplyMtheMdenominatorsMtogether.M
4.MrewriteMtheMfinalManswerMasMaMmixedMnumber.
StepsMtoMmultiplyMaMfractionMbyMaMmixedMnumberMorMmultiplyingM2MmixedMnumbers.
M-MAnswerM1.MchangeMtheMmixedMnumberMtoManMimproperMfraction.M
2.MmultiplyMtheMnumerators.