Mokhoa oa ho fetolela metsotso ka lihora tse, 'me sekgoeng: mehlala e, mekhoa, thahasellisang le linako

A re ke re sheba ka ho hlaka kamoo u ka e fetolela metsotso ka lihora tse, 'me sekgoeng. Ho qala, re lumela hore re hloka tsebo ka mentlele hlokahala. Ka mor'a hore tsohle, ha ho na dipalelo ke ha hoa lekana. Haeba u etsa hore ba ka kelellong ea hao kapa ka sekhechana sa pampiri ha se sebetse, ka nako eo sebelisa khalekhuleita. E latelang tla tšohloa hoo e batlang e le dikgetho kaofela kamoo ho fetolela metsotso e fetoha lihora.

Ho tloha mehleng ea boholo-holo ho fihlela joale

Sheba manakaneng ena. likarohano e 60, i.e. metsotsoana 60 (metsotso). ke mang metsoalle le lipalo, o ne a hlokometse hore saense ena e tšoana le qhekella, ea mohlolo, ka tsela eo amuse. batho ba boholo-holo ba ne ba mong le e mong batla a ka bohlale e le batho ba mehleng ea rōna, ho fapana le hoo, esita le ka ho hong ho atleha.

Seo re nang le 'ona kajeno:

• hora 1 - ke mets 60;.
• E lekana le 1 motsotso metsotsoana 60;
• hora e 1 e na le metsotsoana 3600.

Ya e le hantle, 3600 e fumanoa ka ho ata metsotsoana metsotso 60 metsotsoana e 60. * A re ke re nka e mong look at oache e, ka mohlala, hourly weather (lekgutshwanyane motsu) e ka 12, 'me ka motsotso wa (telele) - e bontša hore hona joale metsotso e 20. Ke hore, pele metsotso e mashome a mabeli. Joale ak'u nahane ka mokhoa oa ho fetolela metsotso e fetoha lihora ka mohlala ona.

Le bonolo le le rarahaneng dipalelo ho 1 chasa

Nahana ka mentlele sekolong sa mathomo le 5th sehlopheng: ho ne ho thunngoa. Seo re tloaetse ho? 1 ka hora = 60 mets. Mme re na le metsotso e 20 feela. Ho ka ba ka nepo o ile a hlokomela hore ho ile ha nka lihora tse 20/60 feela. Empa rea tseba hore ho karoloana ka fokotsehile. A re ke re etsa:

20/60 = 1/3.

Kakaretso fetile lihora 1/3, kapa haeba kabelo e 0,33.

A re hlahlobeng khetho e 'ngoe: hore ke kotara ea hora? Mokhoa oa ho fetolela metsotso e fetoha lihora ka fapana?

dihora tse 1/4 = metsotso e 15. Ho tlile joang hore ho ka etsahala joang?

15 mets. / 60 mets. = 1/4.

Tsela ea ho ngola metsotso e 10 ka oache e? Technology ditharollo indentichna:

10 mets. / 60 mets. = Lihora 1/6 = lihora tse 0.167. Ho hlakile hore joalo le tlaleho e fosahetseng, kahoo metsotso e 10 buelloa ha ho e fetolela.

Ho feta hora

Boholo ba rōna re bone kamoo mohlala, e ngotsoeng ka annotations ho nako le filimi: 150 mets. Mokhoa oa ho fetolela metsotso ka lihora tse tabeng ena? Ka kōpo hlokomela hore ho tla ba le ha ho na le likaroloana tse. Hobaneng? Hobane ka karolo fetileng, e ne e le nako e le hore e ile ea nka hora e ka tlase ho 1. 'Me hona joale tsela tse ling ka bophara tsohle. Sheba ka e mong letsoho la sohle tla ba bonolo, empa ha e le hantle e rarahaneng le ho feta.

Ho joalo, khutlela ho metsotso e 150. Le nako e telele ba ne ba sa nahane, a re ke re akaretsa menahano ea metsotso e 60 ho ea ho e le nako e telele ha re ntse re finyelle baballoa ea 150: 60 mets. + 60 mets. = 120. Ho ke ke ho hlokahala hore ba khaotse ho, hobane haeba e mong metsotso e 60 a phaella ka, ho tla ba le 180, 'me re na le ha e le hantle filimi ke metsotso e 150 feela. Back to metsotso rona 120. Ya e le hantle, e 's 2:00. Joale metsotso e 150 ho tlosa 120. fa 30.

O ka e etsa ka tsela e fapaneng. Emisa bakeng sa metsotso e le 120 kelellong fumana sieo halofo ea hora. Mona o na le lebaka: metsotso e 150. = Lihora tse 2 metsotso e 30. = Lihora tse 2,5.

Le kamoo ho ka fumana lihora tse 1.5 tsa metsotso? Hang-hang nahana hora e 1 mets 30:. 60 + 30 = metsotso 90.

Ho seng jwalo, e mong kaofela karoloana mentlele and-tenths tse hlano, e leng ka mor'a ho sokoloha ke: 15/10 = 3/2. Ha e le hantle lihora tse 1.5 - ya hora 3/2.

Ak'u nahane ka thuto ka tlelaseng 3, e leng e tse amanang le dikotwana. Ho na le ba ntse ba litšoantšo 'mala tse bontšang se boleloang ke ho 5/6 kapa 1/2.

Hobaneng ho rarahana joalo hlokahalang?

Nahana hore ho ithuta le kemiso tsa literene. Ka tloaelo ho, ho ngola, ho etsa mohlala, ba tsamaea nako: 1 hora metsotso 5. Ho bonahala ho ba hlakileng. Empa a re ke re nahana kamoo e ka mor'a metsotso e? metsotso e 65. Tse ling: lihora tse 2 metsotso 35? A re ke re bale:

lihora tse 2 = metsotso 120, eketsa metsotso e 'ngoe 35. Ka kakaretso: 120 + 35 = 155 mets.

Kahoo re sheba kamoo ho fetolela metsotso e fetoha lihora, le motlatsi le lengwe. E le hore ba khona ho ka potlako a bale, ke tse lakatsehang ho tseba lintho tsa motheo tsa thuto ea lipalo. Haeba u sitoa ho kelellong bale ho hlokahala hore ho rarolla bothata boo ka lakane e.