Yuav Ua Li Cas Ntxiv Fractions nrog Cov Txiaj Ntsig Sib Txawv: 11 Kauj Ruam

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Yuav Ua Li Cas Ntxiv Fractions nrog Cov Txiaj Ntsig Sib Txawv: 11 Kauj Ruam
Yuav Ua Li Cas Ntxiv Fractions nrog Cov Txiaj Ntsig Sib Txawv: 11 Kauj Ruam

Video: Yuav Ua Li Cas Ntxiv Fractions nrog Cov Txiaj Ntsig Sib Txawv: 11 Kauj Ruam

Video: Yuav Ua Li Cas Ntxiv Fractions nrog Cov Txiaj Ntsig Sib Txawv: 11 Kauj Ruam
Video: Nkauj Ntseeg 2023 | "Vajtswv Txoj Kev Txiav Txim Yeej Raug Nthuav Tawm Puv Npo Lawm" | Gospel Choir 2024, Hlis ntuj nqeg
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Ntxiv cov zauv nrog cov lej sib txawv tuaj yeem zoo li nyuaj, tab sis thaum koj tau txais cov lej sib npaug, koj tuaj yeem ntxiv cov lej faib tau yooj yim. Yog tias koj tab tom ua haujlwm ntawm cov teeb meem ib txwm muaj nrog cov lej uas ntau dua li cov lej, ua cov lej sib npaug rau ob feem. Tom qab ntawd, ntxiv ob tus lej ntxiv. Yog tias koj tab tom ntxiv cov lej sib xyaw, xub hloov tus lej mus rau feem feem sib npaug thiab sib npaug ob feem. Txoj kev no, koj tuaj yeem yooj yim ntxiv ob feem ua ke.

Kauj ruam

Txoj Kev 1 ntawm 2: Ntxiv Fractions Common

Ntxiv Fractions Nrog Tsis Zoo Li Cov Cim Cim Kauj Ruam 1
Ntxiv Fractions Nrog Tsis Zoo Li Cov Cim Cim Kauj Ruam 1

Kauj Ruam 1. Nrhiav qhov tsawg tshaj plaws sib txawv (LCM) rau tus lej

Txij li thaum koj yuav tsum sib npaug ob qho lej ua ntej yuav ntxiv cov lej, nrhiav LCM ntawm cov lej. Tom qab ntawd, xaiv qhov LCM tsawg tshaj plaws.

Piv txwv li, rau qhov teeb meem 9/5 + 14/7, qhov sib npaug ntawm 5 yog 5, 10, 15, 20, 25, 30, thiab 35, thaum sib npaug ntawm 7 yog 7, 14, 21, 28, thiab 35.35 yog qhov tsawg tshaj plaws ntawm ob tus lej

Ntxiv Fractions Nrog Tsis Zoo Li Cov Piv Txwv Kauj Ruam 2
Ntxiv Fractions Nrog Tsis Zoo Li Cov Piv Txwv Kauj Ruam 2

Kauj Ruam 2. Muab tus zauv thiab cov zauv faib kom tau cov lej sib faib kom raug

Koj yuav tsum tau suav tag nrho cov feem faib kom cov lej sib faib yog qhov tsawg tshaj plaws ntawm qhov ua dhau los.

Piv txwv li, sib npaug 9/5 los ntawm 7 kom tau 35 raws li cov lej. Kuj suav tus lej los ntawm 7. Tom qab ntawd, feem yuav yog 63/35

Ntxiv Fractions Nrog Tsis Zoo Li Cov Cim Cim Kauj Ruam 3
Ntxiv Fractions Nrog Tsis Zoo Li Cov Cim Cim Kauj Ruam 3

Kauj Ruam 3. Hloov lwm cov zauv ua feem sib npaug

Nco ntsoov tias thaum koj kho thawj feem ntawm ib qho teeb meem, koj kuj yuav tsum tau kho lwm feem uas yog sib npaug.

Piv txwv li, yog tias koj hloov 9/5 rau 63/35, sib npaug 14/7 los ntawm 5 kom tau qhov feem 70/35. Thawj qhov 9/5 + 14/7 qhov teeb meem ntxiv tam sim no tau hloov mus rau 63/35 + 70/35

Ntxiv Fractions Nrog Tsis Zoo Li Cov Piv Txwv Kauj Ruam 4
Ntxiv Fractions Nrog Tsis Zoo Li Cov Piv Txwv Kauj Ruam 4

Kauj Ruam 4. Ntxiv ob tus lej uas tsis hloov tus lej

Thaum cov lej rau ob feem ua tau zoo ib yam, ntxiv cov lej. Muab cov lus teb sau rau saum cov denominator.

Piv txwv li, 63 + 70 = 133. Sau qhov sib npaug ntawm qhov sib faib kom koj tau txais 133/35

Ntxiv Fractions Nrog Tsis Zoo Li Cov Piv Txwv Kauj Ruam 5
Ntxiv Fractions Nrog Tsis Zoo Li Cov Piv Txwv Kauj Ruam 5

Kauj Ruam 5. Yooj yim lossis txo cov lus teb yog tsim nyog

Yog tus lej ntau dua tus lej (paub tias yog ib feem tsis raug), hloov cov feem mus rau tus lej sib xyaw. Txhawm rau hloov qhov no, faib cov lej los ntawm cov lej sib faib kom txog rau thaum koj tau txais cov lej. Tom qab ntawd, txheeb xyuas qhov seem ntawm kev faib thiab tso qhov seem saum toj no cov lej. Txo qhov feem yog nws tseem tuaj yeem ua kom yooj yim dua.

Piv txwv, 133/35 tuaj yeem yooj yim rau 28/35. Qhov feem no tseem tuaj yeem txo qis rov qab mus rau 4/5 yog li cov lus teb kawg rau koj qhov teeb meem ntxiv yog 3 4/5

Txoj Kev 2 ntawm 2: Ntxiv Kev Sib Raug Zoo

Ntxiv Fractions Nrog Tsis Zoo Li Cov Piv Txwv Kauj Ruam 6
Ntxiv Fractions Nrog Tsis Zoo Li Cov Piv Txwv Kauj Ruam 6

Kauj Ruam 1. Hloov cov feem sib xyaw ua ke mus rau qhov tsis zoo

Yog tias koj tau txais ib feem nrog tag nrho tus lej, hloov nws mus rau ib feem ua kom yooj yim ntxiv. Tus lej ntawm koj feem yuav ntau dua tus lej.

Piv txwv, 6 3/8 + 9 1/24 tuaj yeem hloov pauv mus rau 51/8 + 217/24

Ntxiv Fractions Nrog Tsis Zoo Li Cov Cim Hauv Kauj Ruam 7
Ntxiv Fractions Nrog Tsis Zoo Li Cov Cim Hauv Kauj Ruam 7

Kauj Ruam 2. Nrhiav qhov tsawg tshaj plaws uas muaj ntau yog tias tsim nyog

Yog tias cov lej ntawm ob feem sib txawv, koj yuav tsum sau ntau ntxiv rau txhua tus lej kom koj tuaj yeem pom ntau tus lej ntawm tib tus lej. Piv txwv li, rau 51/8 + 217/24, sau cov lej ntawm 8 thiab 24 kom txog thaum koj pom 24.

Txij li cov lej ntawm 8 suav nrog 8, 16, 24, 32, thiab 48, thiab cov lej ntawm 24 suav nrog 24, 48, thiab 72, tus lej 24 tuaj yeem xaiv ua tsawg tshaj plaws

Ntxiv Fractions Nrog Tsis Zoo Li Cov Cim Hauv Kauj Ruam 8
Ntxiv Fractions Nrog Tsis Zoo Li Cov Cim Hauv Kauj Ruam 8

Kauj Ruam 3. Hloov cov feem mus rau ib feem sib npaug yog tias koj xav hloov pauv cov lej

Txhua tus lej yuav tsum tau hloov pauv mus rau qhov tsawg tshaj plaws uas koj tau txais yav dhau los. Muab txhua feem faib los ntawm tus lej los hloov cov lej rau qhov tsawg tshaj plaws.

Piv txwv, kom hloov tus lej ntawm 51/8 mus rau 24, muab tag nrho cov zauv faib ua 3. Koj yuav tau txais qhov feem 153/24 los ntawm cov khoom

Ntxiv Fractions Nrog Tsis Zoo Li Cov Cim Hauv Kauj Ruam 9
Ntxiv Fractions Nrog Tsis Zoo Li Cov Cim Hauv Kauj Ruam 9

Kauj Ruam 4. Hloov tag nrho cov feem hauv qhov teeb meem kom lawv sib npaug

Yog tias cov lej ntawm lwm qhov kev faib ua feem hauv qhov teeb meem sib txawv, koj yuav tsum tau muab lawv sib npaug kom lawv zoo ib yam li cov lej ntawm cov feem dhau los. Yog tias koj twb muaj cov lej sib txawv, cov feem tsis tas yuav hloov kho.

Piv txwv li, yog tias koj muaj cov feem 217/24, koj tsis tas yuav kho nws vim tias nws twb muaj cov lej sib npaug ib yam li cov lej ua ntej

Ntxiv Fractions Nrog Tsis Zoo Li Cov Cim Hauv Kauj Ruam 10
Ntxiv Fractions Nrog Tsis Zoo Li Cov Cim Hauv Kauj Ruam 10

Kauj Ruam 5. Ntxiv ob tus lej uas tsis hloov tus lej

Koj tuaj yeem ntxiv ob tus lej ua ke tom qab cov lej sib npaug (lossis yog tias lawv zoo ib yam txij thaum pib). Tom qab ob tus lej tau ntxiv, sau cov lus teb saum toj no cov lej. Tsis txhob ntxiv cov lej ntawm ob feem ua ke.

Piv txwv, 153/24 +217/24 = 370/24

Ntxiv Fractions Nrog Tsis Zoo Li Cov Cim Hauv Kauj Ruam 11
Ntxiv Fractions Nrog Tsis Zoo Li Cov Cim Hauv Kauj Ruam 11

Kauj Ruam 6. Yooj yim teb

Yog tias tus lej ntawm qhov suav ntau dua li tus lej, koj yuav tsum faib nws kom txog thaum koj tau txais cov lej. Kom tau tus lej sib xyaw, sau qhov seem ntawm kev faib. Tom qab ntawd, tso qhov seem ntawm kev faib ua ke saum toj no cov lej sib npaug. Khaws txo qhov feem kom txog thaum koj mus rau daim ntawv yooj yim tshaj plaws.

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