Video: Ib nrab ntawm 3/4 nti yog dab tsi?
2024 Tus sau: Miles Stephen | [email protected]. Kawg hloov kho: 2023-12-15 23:36
1 3/4 yog tus lej sib xyaw. Tus 1 hauv nws yog tus lej tag nrho thiab tus 3/4 yog ib feem. Yog li cov ib nrab ntawm nws yog qhov tseeb ntawm ib nrab ntawm ob ntu, uas yog 1/2 + 3/8 = 7/8.
Ib sab ntawm no, dab tsi yog ib nrab ntawm 3/4 nti hauv ib feem?
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).
Tsis tas li ntawd, ib nrab ntawm 3/4 nti yog dab tsi? 1 3/4 yog tus lej sib xyaw. Tus 1 hauv nws yog tus lej tag nrho thiab tus 3/4 yog ib feem. Yog li cov ib nrab ntawm nws yog qhov tseeb ntawm ib nrab ntawm ob ntu, uas yog 1/2 + 3/8 = 7/8.
Ib yam li ib tug yuav nug, dab tsi yog ib nrab ntawm 3/4 ntawm ib nti ntawm daim kab xev ntsuas?
Raws li ib qho piv txwv, cov duab hauv qab no qhia tau hais tias qhov ntev mus ntawm qhov nti kos npe rau ib qho tsis muaj npe. Peb paub tias nws yog ntau tshaj 3/4 ntawm ib nti thiab tsawg dua ib qho puv nti . 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.
Dab tsi yog.375 raws li ib feem?
Hloov ua lwm yam Fractions rau Decimals mus nti rau MM Hloov ua lwm yam
| Ib feem | Decimal | millimeters |
|---|---|---|
| 11/32 | .3437 | 8.731 |
| 23/64 | .3594 | 9.128 |
| 3/8 | .375 | 9.525 |
| 25/64 | .3906 | 9.921 |
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