WEBVTT

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Pieņemsim, ka mums ir 9/10,

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un mēs gribam pie tām pieskaitīt 1/6.

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Kāds būs iznākums?

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Varētu likties:

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"Te jau ir dažādi saucēji.

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Kā tad tos var saskaitīt?"

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Un tā arī ir, bet to var atrisināt,

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ja atrod kopīgu dalāmo,

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par ko pārvērst abus saucējus,

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lai tie abiem būtu vienādi.

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Kā atrast kopīgu saucēju?

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Kopīgs saucējs būs

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abu skaitļu, 10 un 6, kopīgs dalāmais.

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Kas ir 10 un 6 kopīgais dalāmais?

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Mazāko kopīgo dalāmo var viegli atrast,

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ja sāk ar lielāko no saucējiem, ar 10.

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Vai 10 var dalīt ar 6?

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Nevar. Tālāk, vai 20 var dalīt ar 6?

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Nē. Vai 30 var dalīt ar 6?
Jā, 30 var dalīt ar 6.

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Mēs vienkārši reizinām 10

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un meklējam mazāko skaitli,

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ko var dalīt ar 6.
Tas būs 30.

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Tātad abiem varam dot

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saucēju 30.

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9/10, kā to pārvērst par daļskaitli

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ar saucēju 30?

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Sākumā jāsareizina saucējs ar trīs.

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Esam sareizinājuši saucēju ar 3.

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Ja negribam mainīt daļas vērtību,

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jāreizina arī skaitītājs.

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Tas arī jāreizina ar 3.

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Ja mēs reizinām gan skaitītāju,

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gan saucēju ar 3,

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daļskaitļa vērtība nemainās.

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9 reiz 3 ir 27.

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Kā redzi, 9/10 un 27/30

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ir viena un tā pati daļa.

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Vienkārši tagad tai saucējs ir 30.

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Tas ir forši, jotagad varam

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piešķirt saucēju 30 arī 1/6.
Ķersimies klāt.

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Kāds būs jaunais daļskaitlis?

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Vari apturēt video

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un padomāt.

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Kas jādara ar 6, lai sanāk 30?

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Tas jāreizina ar 5.

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Ja reizinām saucēju ar 5,

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tas pats jādara arī ar skaitītāju.

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Tātad, 1 reiz 5 būs 5.

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9/10 ir tas pats, kas 27/30,

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un 1/6 ir tas pats, kas 5/30.

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Tagad beidzot varam saskaitīt,

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jo saucēji ir vienādi!

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Vienu skaitli trīsdesmito
saskaitām ar otru.

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.

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Tātad 27/30 plus 5/30.

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Sanāk 27 plus 5.

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Plus 5 jeb piecas trīsdesmitās.

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Plus 5/30.

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Kopā sanāk 32/30.

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32/30.

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Ja gribam, varam šo daļskaitli vienkāršot.

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Jāatrod kopīgs dalītājs,

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abus var dalīt ar 2.

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Dalām skaitītāju un saucēju ar 2.

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Skaitītājs dalīts ar 2 ir 16,

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saucējs dalīts ar 2 ir 15.

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Šis daļskaitlis būs vienāds ar 16/15.

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Un ja gribam to pārvērst jauktā skaitlī, 15

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