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Converting decimals to fractions 1 (ex 3)

  • 0:00 - 0:08
    La oss se om vi kan skrive
    0,36 som en brøk.
  • 0:08 - 0:12
    Det er flere måter å gjøre det på.
    Jeg foretrekker å tenke at
  • 0:12 - 0:16
    0,36 er det samme som 36 hundredeler.
  • 0:16 - 0:21
    Eller vi kan tenke på det som at
    dette er hundredelsplassen.
  • 0:21 - 0:28
    Dette er tidelsplassen - <i>eller</i> du kan
    se på dette som 30 hundredeler.
  • 0:28 - 0:31
    Dette kan være 3 tideler,
    eller 30 hundredeler.
  • 0:31 - 0:38
    Så dette er det samme som 36 hundredeler,
    eller det er lik 36 <i>over</i> 100.
  • 0:38 - 0:42
    Vi har allerede uttrykt det som en brøk,
    men nå kan vi forkorte,
  • 0:42 - 0:50
    siden 36 og 100 har felles faktorer.
    Begge ser ut til å være delelige med 4,
  • 0:50 - 0:56
    så hvis vi deler både telleren og nevneren
    med 4 (vi gjør det samme med begge,
  • 0:56 - 1:04
    så vi endrer ikke verdien av brøken),
    36 delt på 4 er 9. Og 100 delt på 4 er 25.
  • 1:04 - 1:08
    Og disse to tallene ser ikke ut til å ha
    noen andre felles faktorer,
  • 1:08 - 1:13
    så vi har skrevet det i forkortet form.
    Og vi er ferdige.
Title:
Converting decimals to fractions 1 (ex 3)
Description:

Converting this decimal results in a fraction that needs to be simplified. Can you help us?

Practice this lesson yourself on KhanAcademy.org right now: https://www.khanacademy.org/math/pre-algebra/decimals-pre-alg/decimal-to-fraction-pre-alg/e/converting_decimals_to_fractions_1?utm_source=YT&utm_medium=Desc&utm_campaign=PreAlgebra

Watch the next lesson: https://www.khanacademy.org/math/pre-algebra/decimals-pre-alg/decimal-to-fraction-pre-alg/v/converting-decimals-to-fractions-2-ex-1?utm_source=YT&utm_medium=Desc&utm_campaign=PreAlgebra

Missed the previous lesson?
https://www.khanacademy.org/math/pre-algebra/decimals-pre-alg/decimal-to-fraction-pre-alg/v/converting-decimals-to-fractions-1-ex-2?utm_source=YT&utm_medium=Desc&utm_campaign=PreAlgebra

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Video Language:
English
Team:
Khan Academy
Duration:
01:14

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