Yuav ua li cas hloov cov feem mus rau feem pua?

Cov txheej txheem:

Yuav ua li cas hloov cov feem mus rau feem pua?
Yuav ua li cas hloov cov feem mus rau feem pua?

Video: Yuav ua li cas hloov cov feem mus rau feem pua?

Video: Yuav ua li cas hloov cov feem mus rau feem pua?
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Anonim

Yuav hloov ib feem mus rau ib feem pua, ua ntej faib tus lej los ntawm tus denominator. Tom qab ntawd muab tus lej lej los ntawm 100. Ntawd yog, feem 48 tuaj yeem hloov mus rau lej los ntawm kev faib 4 los ntawm 8. Nws tuaj yeem hloov mus rau feem pua ntawm qhov muab cov lej los ntawm 100.

Yuav ua li cas koj tig 3/8 mus rau ib feem?

Kev piav qhia:

  1. 0.375 is 38 as a decimal.
  2. 37.5 yog 0.375 raws li feem pua.
  3. 3=n. 8=np. 0.375=x. 37.5%=y.
  4. faib cov n umerator los ntawm tus enominator.
  5. n ÷ d=x.
  6. multiply x by 100.
  7. x × 100=y.

Yuav ua li cas koj tig ib feem mus rau hauv feem pua tsis muaj lub laij lej?

Txhawm rau hloov cov feem mus rau feem pua tsis muaj lub laij lej, siv cov kauj ruam hauv qab no:

  1. Mua tus denominator (hauv qab) ntawm feem los ntawm tus lej kom tus denominator sib npaug 100.
  2. Multiply the numerator (sab saum toj) ntawm cov feem los ntawm tib tus lej.
  3. Tau tus lej tshiab no thiab sau % kos npe tom qab nws.

Koj qhia li cas 7/8 li feem pua?

1 Teb

  1. 78=0.875.
  2. 12.5×8=100.
  3. 78=87.5%

7 8th ntawm 100 yog dab tsi?

Tam sim no peb pom tau tias peb feem yog 87.5/100, txhais tau tias 7/8 feem pua yog 87.5%.

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