Video: Dab tsi yog.7 rov ua dua ib feem?
2024 Tus sau: Miles Stephen | [email protected]. Kawg hloov kho: 2023-12-15 23:36
Common Repeating Decimals thiab lawv cov feem sib npaug
| Rov ua dua Decimal | Sib npaug Fraction |
|---|---|
| 0.4444 | 4/9 |
| 0.5555 | 5/9 |
| 0.7777 | 7/9 |
| 0.8888 | 8/9 |
Tib neeg kuj nug, dab tsi yog 0.7 Rov ua dua ib feem?
Common Repeating Decimals thiab lawv cov feem sib npaug
| Rov ua dua Decimal | Sib npaug Fraction |
|---|---|
| 0.2222 | 2/9 |
| 0.4444 | 4/9 |
| 0.5555 | 5/9 |
| 0.7777 | 7/9 |
Ib tug kuj yuav nug, puas yog 0.7 Rov hais dua tus lej tsim nyog? Teb thiab piav qhia: Tus lej 0.7 yog a tus lej rational.
Tsuas yog li ntawd, dab tsi yog 0.07 raws li ib feem hauv daim ntawv yooj yim?
| Decimal | Ib feem | Feem pua |
|---|---|---|
| 0.1 | 10/100 | 10% |
| 0.09 | 9/100 | 9% |
| 0.08 | 8/100 | 8% |
| 0.07 | 7/100 | 7% |
Dab tsi yog 0.123 rov ua ib feem?
Peb xub cia 0.123 (123 rov ua dua) yog x. Vim yog x rov tshwm sim nyob rau hauv 3 qhov chaw decimal, peb muab nws los ntawm 1000. Tom ntej no, peb rho lawv. Thaum kawg, peb faib ob sab los ntawm 999 kom tau x raws li a feem.
Pom zoo:
Qhov feem ntawm 33 1 3 feem pua yog dab tsi?
Piv txwv tus nqi feem pua ntawm cov zauv feem 25% 0.25 1/4 331/3% 0.333 1/3 50% 0.5 1/2 75% 0.75 3/4
Dab tsi yog qhov zoo feem pua rov qab rau recrystallization?
Raws li wikipedia, cov txiaj ntsig ib txwm muaj ntawm cov dej kub recrystallization ntawm benzoic acid yog 65%, tab sis qhov ntawd yog nyob rau hauv qhov zoo tagnrho. Raws li qhov ntawd, kev rov qab los ntawm 54% yog qhov zoo, tshwj xeeb tshaj yog tias qhov ntawd yog koj thawj zaug sim
Dab tsi yog 0.8 raws li ib feem feem?
Piv txwv tus nqi feem pua ntawm cov zauv feem 75% 0.75 3/4 80% 0.8 4/5 90% 0.9 9/10 99% 0.99 99/100
Yuav ua li cas koj sau ib feem raws li ib tug khoom ntawm ib tug tag nrho cov zauv thiab ib feem feem?
Cov cai los nrhiav cov khoom ntawm ib feem feem thiab tag nrho tus lej Peb xub sau tag nrho cov lej ua ib feem, piv txwv li, sau nws faib los ntawm ib qho; Piv txwv li: 7 yog sau ua 71. Peb mam li muab cov zauv. Peb muab cov denominators. Yog tias yuav tsum tau ua kom yooj yim, nws ua tiav thiab tom qab ntawd peb sau cov feem kawg
Dab tsi yog 3 feem ntawm ib feem?
Tus lej sab saum toj ntawm ib feem yog hu ua nws tus lej thiab hauv qab yog nws tus lej