Video: Ib nrab ntawm 3/4 yog dab tsi?
2024 Tus sau: Miles Stephen | [email protected]. Kawg hloov kho: 2023-12-15 23:36
Koj tuaj yeem xam ib nrab ”ib a feem los ntawm ob npaug ntawm tus lej (hauv qab tus lej * 2), yog li ib nrab ntawm 3/4 yog 3/8 (formula: ib nrab ntawm a/b yog tib yam li a/(b*2), piv txwv li ib nrab ntawm 3/4 sib npaug 3/(4*2) uas sib npaug 3/8). Lwm txoj hauv kev yog txo tus lej los ntawm ib nrab (tus naj npawb sab saum toj muab faib los ntawm 2).
Raws li txoj cai, koj pom ib nrab ntawm 3 4 li cas?
Tus naj npawb ntawm tablespoons uas ntxiv mus 3/4 khob yog 12, yog li faib 12 hauv ib nrab thiab ntxiv 6 tablespoons qab zib rau koj daim ntawv qhia rau ib nrab ntawm 3/4 khob. Siv daim kab xev ntsuas los yog tus pas ntsuas ntsuas qhov siab ntawm qhov 3/4 khob koj siv. Yog tias 3/4 khob yog 2 1/4 nti siab, piv txwv li, koj yuav sau lub khob 1 1/8 nti siab.
Tsis tas li ntawd, ib nrab ntawm 3/4 ntawm ib daim kab xev ntsuas yog dab tsi? Ua piv txwv, cov duab hauv qab no qhia tau hais tias qhov ntev mus ntawm qhov cim ntiv tes mus rau qhov tsis muaj cim cim. Peb paub tias nws yog ntau tshaj 3/4 ntawm ib nti thiab tsawg tshaj li ib nti puv. Lub cim yog ib nrab txoj kev ntawm 3/4 (6/8) thiab 7/8. Yog li ntawd, lub cim yog ib nrab 1/8, los yog 1/16.
Kuj kom paub, dab tsi yog ib nrab ntawm 3/4 teaspoon hauv ib feem?
Ib ib nrab ntawm 3/4 teaspoon yog sib npaug rau 3/8 los yog 0.375 teaspoons . Ib txoj hauv kev los nrhiav cov lus teb hauv cov feem daim ntawv ntawm 3/8 yog muab cov feem 1/2 ib 3/4.
0.375 yog dab tsi?
Txav qhov decimal point ntawm tus denominator mus rau sab xis los ntawm tib tus naj npawb ntawm qhov chaw uas qhov decimal point ntawm tus lej txav uas yog 3. thiab li no 1 hauv denominator ua 1000. feem yuav yog 3751000. Yog li ntawd, 0.375 hauv feem yog 38.
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