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Video: Yuav ua li cas koj qhia yog hais tias ib tug khub ntawm ratios tsim ib tug proportions?
2024 Tus sau: Miles Stephen | [email protected]. Kawg hloov kho: 2023-12-15 23:36
Sim ua kom paub yog ob piv yog proportional ? Yog lawv nyob hauv feem daim ntawv , teem lawv sib npaug rau ib leeg mus kuaj yog lawv yog proportional . Hla multiply thiab simplify. Yog koj tau txais ib nqe lus tseeb, ces tus piv yog proportional !
Xav txog qhov no, koj tuaj yeem qhia tau li cas yog tias ob feem ntau tsim ib qho kev faib ua feem?
Feem thiab sib npaug Ib feem Koj ua tau qhia tias ob feem yog proportional by siv cross multiplication. Tsuas yog sib npaug ib feem yog proportional. Txhawm rau ua qhov no, muab tus lej sib npaug, tus lej hauv qab ntawm tus lej feem , ntawm thawj feem nrog tus lej, tus lej saum toj kawg nkaus hauv tus lej feem.
Tsis tas li ntawd, txoj cai rau kev daws cov proportions yog dab tsi? Cov khoom ntawm cov txhais tau tias sib npaug ntawm cov khoom ntawm qhov siab. Cov txiaj ntsig ntawm kev txhais tau tias yog cov khoom ntawm qhov kawg. Cov khoom ntawm qhov siab tshaj plaws yog ob npaug ntawm cov khoom ntawm txoj kev.
Ua li no, koj yuav pom qhov piv ntawm ib yam dab tsi?
Nrhiav qhov sib npaug piv , koj tuaj yeem muab faib lossis faib txhua lub sijhawm hauv lub piv los ntawm tib tus lej (tab sis tsis yog xoom). Piv txwv li, yog tias peb faib ob nqe lus hauv lub piv 3:6 los ntawm tus lej peb, ces peb tau qhov sib npaug piv , 1:2.
Koj daws teeb meem piv txwv li cas?
Txhawm rau siv proportions los daws qhov teeb meem ntawm lo lus, peb yuav tsum ua raws li cov kauj ruam no:
- Txheeb xyuas qhov paub piv thiab qhov tsis paub piv.
- Teeb tsa qhov kev faib ua feem.
- Hla-multiply thiab daws.
- Xyuas cov lus teb los ntawm kev ntsaws qhov tshwm sim rau hauv qhov tsis paub qhov piv.
Pom zoo:
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