Cov txheej txheem:

Yuav ua li cas koj sau ib feem raws li ib tug khoom ntawm ib tug tag nrho cov zauv thiab ib feem feem?
Yuav ua li cas koj sau ib feem raws li ib tug khoom ntawm ib tug tag nrho cov zauv thiab ib feem feem?

Video: Yuav ua li cas koj sau ib feem raws li ib tug khoom ntawm ib tug tag nrho cov zauv thiab ib feem feem?

Video: Yuav ua li cas koj sau ib feem raws li ib tug khoom ntawm ib tug tag nrho cov zauv thiab ib feem feem?
Video: yuav coj li cas kom luag nyiam 2024, Kaum ib hlis
Anonim

Cov cai los nrhiav cov khoom ntawm ib feem feem thiab tag nrho tus lej

  1. Peb ua ntej sau tus tus lej as a feem , i.e., sau ntawv nws faib los ntawm ib tug; Piv txwv li: 7 sau ua 71.
  2. Peb mam li muab cov zauv.
  3. Peb muab cov denominators.
  4. Yog xav tau ib qho yooj yim, nws yog ua tiav thiab ces peb sau qhov kawg feem .

Ua raws li qhov no, txoj cai twg koj tuaj yeem sau txog kev faib tus lej tag nrho los ntawm ib feem feem?

Yog, thaum twg faib tag nrho tus lej los ntawm ib feem feem , multiply cov tus lej los ntawm unit feem denominator ib txwm ua haujlwm! a faib by (1/b) = a times (b/1) = (a/1) times (b/1) = ab/1 = ab.

Kuj Paub, tus nqi ntawm 1 units yog ib feem? A unit feem yog ib tug lej rational sau ua a feem qhov twg tus lej yog ib thiab tus denominator yog tus lej zoo. A unit feem yog li ntawd yog qhov sib npaug ntawm tus lej zoo, 1 /n. Piv txwv yog 1 / 1 , 1 /2, 1 /3, 1 /4, 1 /5, thiab lwm yam.

Tib neeg kuj nug, dab tsi yog cov khoom hauv ib feem?

A feem yuav tsum tau ua kom yooj yim yog tias tib tus lej tuaj yeem faib ob tus lej thiab tus lej ntawm a feem . Yog li 4/6 yuav dhau los ua 2/3 thiab koj yuav muab 3/5. Ua ntau tus lej. Muab tus lej saum toj kawg nkaus hauv ib qho feem los ntawm tus lej saum toj kawg nkaus hauv lwm qhov feem.

Kuv yuav nrhiav tau cov khoom li cas?

Cov khoom yog cov lus teb rau qhov teeb meem sib npaug. Koj tuaj yeem nrhiav tau ib khoom los ntawm cov txheej txheem hu ua rov ntxiv ntxiv, uas yog hais, los ntawm kev ntxiv ua ke ntawm cov pab pawg hauv qhov teeb meem.

Pom zoo: