-Delile
I- izingxenyana kukhona izakhi zezibalo ezimele isilinganiso esiphakathi kwezibalo ezimbili. Kungesizathu salesi sizathu ukuthi ingxenyenamba ihlotshaniswa ngokuphelele nokusebenza kokwehlukaniswa, empeleni kungashiwo ukuthi ingxenyenamba iyihlukaniso noma i-quotient phakathi kwezinombolo ezimbili.
Ukuba yi-quotient, izingxenyana ingaboniswa njengomphumela wayo, okungukuthi, inombolo eyingqayizivele (inani eliphelele noma idesimali), ukuze zonke ziphinde zivezwe njengezinombolo. Futhi ngomqondo ophambene: zonke izinombolo zingavezwa kabusha njengezingxenyana (Izinombolo zizonke zitholwa njengezingxenyana ezinenani elincane 1).
Ukubhalwa kwezingxenyana kulandela iphethini elandelayo: kunezinombolo ezimbili ezibhaliwe, enye ngaphezulu kwenye futhi yehlukaniswe ngehayikhoni ephakathi, noma yehlukaniswe ngomugqa ohlukanisayo, ofana nalowo obhalwe lapho iphesenti (%) limelwe. Inombolo engenhla yaziwa njenge inombolo, kulena engezansi efana ihlelo owokugcina nguyena usebenza njengomhlukanisi.
Isibonelo, ingxenyenamba engu-5/8 imele u-5 ohlukaniswe ngo-8, ngakho-ke ulingana no-0.625. Uma i-numerator inkulu kune-denominator kusho ukuthi ingxenyenamba inkulu kuneyunithi.
Ngalo mqondo kulula ukubona lokho inombolo efanayo ingabuye ivezwe ngenombolo engapheli yamaqhezu; ngendlela efanayo lapho u-5/8 azolingana no-10/16, 15/24 no-5000/8000, njalo elingana no-0.625. Lezi zingxenyana zibizwa okulingana futhi gcina i-a ubudlelwane obuqondile ngqo.
Kwamalanga, amafrakshini ngokuvamile akhonjiswa ngezinombolo ezincane kunazo zonke, ngoba lokhu kuthungathwa inani elincane kunawo wonke elenza inani libuye libe yinamba. Esibonelweni sezingxenyana zangaphambilini, ayikho indlela yokunciphisa kakhulu, ngoba ayikho inombolo engaphansi kuka-8 nayo ehlukanisa u-5.
Izingxenyana nokusebenza kwezibalo
Mayelana nokusebenza okuyisisekelo kwezibalo phakathi kwezingxenyana, kufanele kuqashelwe ukuthi kwifayela le- isamba kanye ne- ukususa Kuyadingeka ukuthi ama-denominator ahlangane futhi, ngakho-ke, okuphindwe kaningi okujwayelekile kufanele kutholakale ngokulingana (ngokwesibonelo, 4/9 + 11/6 ngu-123/54, ngoba i-4/9 ingama-24/54 no-11/6 ingu-99/54).
Okwe ukuphindaphindeka kanye ne- ukwahlukana, inqubo ilula ngandlela thize: okokuqala, ukuphindaphindwa phakathi kwezinombolo kusetshenziswa ngaphezu kokuphindaphindeka phakathi kwama-denominators; kwesibili, ukuphindaphindwa kuyenziwa 'impi yenkolo'.
Izingxenyana empilweni yansuku zonke
Kumele kuthiwe izingxenyana ezithile zezinto zezibalo ezivela kakhulu empilweni yansuku zonke. Inani elikhulu le- imikhiqizo ithengiswa ivezwa njengezingxenyanaKungaba amakhilogremu amakhilogremu, ilitha, noma amaphoyinti angenasisekelo futhi asungulwe ngokomlando wezinto ezithile, njengamaqanda noma ama-invoyisi, ahamba ngamashumi amabili.
Ngakho-ke 'sinohhafu weshumi', 'ikota yekhilo', 'isaphulelo samaphesenti amahlanu', 'inzalo yamaphesenti amathathu, njll., Kepha konke kubandakanya ukuqonda umqondo wengxenyana.
Izibonelo zamaqhezu
- 4/5
- 21/13
- 61/2
- 1/3
- 40/13
- 44/9
- 31/22
- 177/17
- 30/88
- 51/2
- 505/2
- 140/11
- 1/108
- 6/7
- 1/7
- 33/9
- 29/7
- 101/100
- 49/7
- 69/21
