Similar (Zoo li) feem yog cov feem nrog tib tus lej. Ntawm qhov tod tes, dissimilar (Unlike) fractions yog fractions with different denominators.
Dab tsi yog qhov piv txwv tsis sib xws?
Lub ntsiab lus ntawm qhov sib txawv yog yam uas txawv. Yog koj yog ib tug neeg siv nyiaj thiab koj tus txiv yog tus cawm seej, qhov no yog qhov piv txwv ntawm qhov xwm txheej uas koj muaj tus cwj pwm tsis sib xws.
Dab tsi yog qhov piv txwv zoo sib xws thiab tsis sib xws?
Txhawm rau ntxiv cov feem tsis sib xws (feem feem nrog cov lej sib txawv), koj yuav tsum xub hloov cov feem ntau kom cov denominators zoo ib yam. … Ntxiv cov lej, tab sis cia tus denominator tib yam, ib zaug koj muaj cov feem zoo sib xws. Piv txwv li, 5/15 + 6/15=11/15 lossis 6/12 + 3/12=9/12.
piv txwv ntawm cov feem zoo sib xws yog dab tsi?
Teb: Cov feem zoo sib xws muaj tib tus lej, kuj hu ua tus lej sib piv. … Ntxiv cov zauv, tab sis cia tus denominator tib yam, ib zaug koj muaj cov feem zoo sib xws. Piv txwv li, 5/15 + 6/15=11/15 lossis 6/12 + 3/12=9/12.
Yuav ua li cas feem ntau nrog piv txwv?
Ib feem zoo yog ib feem uas nws tus lej me dua nws tus lej. Ib feem tsis tsim nyog yog ib feem uas nws tus lej sib npaug los yog ntau dua nws tus lej. 3/4, 2/11, thiab 7/19 yog cov feem tsim nyog, thaum 5/2, 8/5, thiab 12/11 yog cov feem tsis tsim nyog.
