Video: Yuav ua li cas koj hloov ib feem mus rau ib feem?
2024 Tus sau: Miles Stephen | [email protected]. Kawg hloov kho: 2023-12-15 23:36
Rau hloov 4/5 rau a feem pua , teeb tsa kev faib ua feem 4/5 = x%/100. Feem yuav crossmultiply. Muab cov zauv ntawm feem ntawm sab laug los ntawm tus lej ntawm feem ntawm sab xis: 4 * 100 = 400.
Yog li ntawd, koj ua li cas xam proportions?
Piv txwv thiab Feem - Feem -Qhov tob. A kev faib ua feem tsuas yog ib nqe lus hais tias ob qhov sib npaug sib npaug. Nws tuaj yeem sau tau ob txoj hauv kev: raws li ob qhov sib npaug fractionsa / b = c / d; los yog siv lub plab, a:b = c:d. Hauv qab no kev faib ua feem yog nyeem li "nees nkaum yog rau nees nkaum-tsib li plaub isto tsib."
Ib yam li ntawd, qhov txhais ntawm ib feem pua yog dab tsi? Loj hais tias ob qhov piv txwv (lossis feem ntau) sib npaug. Piv txwv li: 1/3 = 2/6. Saib: Sib npaug Fractions. Feem.
Tsis tas li ntawd, qhov feem pua uas cuam tshuam nrog kev sib npaug li cas?
Siv cov khoom sib txawv los txiav txim siab seb qhov sib piv ntawm ob yog ib qho kev faib ua feem . Ntawm no peb tuaj yeem pom tias 2/16 thiab 5/40 yog proportions vim lawv cov khoom sib npaug sib npaug. Feem pua txhais tau tias puas lossis ib puas thiab sau nrog lub cim, %. Feem pua yog qhov piv tau peb piv cov lej rau 100 uas txhais tau tias 1% yog 1/100.
Qhov piv txwv piv txwv yog dab tsi?
A kev faib ua feem yog tiag tiag ob qhov piv txwv uas sib npaug rau ib leeg. Ntawm no yog ib qho piv txwv : Yog li ntawd, lawv yuav tsum tsim ib kev faib ua feem . 3rd Txoj kev: Hla cov khoom: Muab cov lej uas muaj kab pheeb ces kaum rau ib leeg. Yog tias cov khoom sib npaug, ob qho piv txwv tsim a kev faib ua feem.
Pom zoo:
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