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Converting decimals to fractions example 3 | Decimals | Pre-Algebra | Khan Academy

  • 0:00 - 0:08
    소수 0.36을
    분수로 나타내 봅시다
  • 0:08 - 0:11
    여러 가지 방법이 있어요
  • 0:11 - 0:17
    먼저 0.36을 36/100으로
    나타낼 수 있겠죠
  • 0:17 - 0:24
    0.36에서 6은
    소수 둘째 자리에 있고
  • 0:24 - 0:26
    3은 소수 첫째 자리에 있으므로
  • 0:26 - 0:30
    3/10이나 30/100으로
    나타낼 수 있습니다
  • 0:30 - 0:39
    따라서 이를 분수로
    나타내면 36/100입니다
  • 0:39 - 0:44
    36과 100에는
    공통인수가 있으므로
  • 0:44 - 0:46
    약분해 봅시다
  • 0:46 - 0:50
    분모와 분자 모두
    4로 나눌 수 있겠네요
  • 0:50 - 0:55
    분자를 4로 나누고
    분모도 4로 나누면
  • 0:55 - 0:59
    같은 값으로 나누므로
    분수 값은 변하지 않습니다
  • 0:59 - 1:04
    36 ÷ 4 = 9
    100 ÷ 4 = 25
  • 1:04 - 1:08
    이제 공통인수가 없네요
  • 1:08 - 1:13
    분수를 기약분수 형태로
    만들었습니다
Title:
Converting decimals to fractions example 3 | Decimals | Pre-Algebra | Khan Academy
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

Korean subtitles

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