Converting decimals to fractions example 3 | Decimals | Pre-Algebra | Khan Academy
-
0:00 - 0:08소수 0.36을
분수로 나타내 봅시다 -
0:08 - 0:11여러 가지 방법이 있어요
-
0:11 - 0:17먼저 0.36을 36/100으로
나타낼 수 있겠죠 -
0:17 - 0:240.36에서 6은
소수 둘째 자리에 있고 -
0:24 - 0:263은 소수 첫째 자리에 있으므로
-
0:26 - 0:303/10이나 30/100으로
나타낼 수 있습니다 -
0:30 - 0:39따라서 이를 분수로
나타내면 36/100입니다 -
0:39 - 0:4436과 100에는
공통인수가 있으므로 -
0:44 - 0:46약분해 봅시다
-
0:46 - 0:50분모와 분자 모두
4로 나눌 수 있겠네요 -
0:50 - 0:55분자를 4로 나누고
분모도 4로 나누면 -
0:55 - 0:59같은 값으로 나누므로
분수 값은 변하지 않습니다 -
0:59 - 1:0436 ÷ 4 = 9
100 ÷ 4 = 25 -
1:04 - 1:08이제 공통인수가 없네요
-
1:08 - 1:13분수를 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=PreAlgebraPre-Algebra on Khan Academy: No way, this isn't your run of the mill arithmetic. This is Pre-algebra. You're about to play with the professionals. Think of pre-algebra as a runway. You're the airplane and algebra is your sunny vacation destination. Without the runway you're not going anywhere. Seriously, the foundation for all higher mathematics is laid with many of the concepts that we will introduce to you here: negative numbers, absolute value, factors, multiples, decimals, and fractions to name a few. So buckle up and move your seat into the upright position. We're about to take off!
About Khan Academy: Khan Academy offers practice exercises, instructional videos, and a personalized learning dashboard that empower learners to study at their own pace in and outside of the classroom. We tackle math, science, computer programming, history, art history, economics, and more. Our math missions guide learners from kindergarten to calculus using state-of-the-art, adaptive technology that identifies strengths and learning gaps. We've also partnered with institutions like NASA, The Museum of Modern Art, The California Academy of Sciences, and MIT to offer specialized content.
For free. For everyone. Forever. #YouCanLearnAnything
Subscribe to KhanAcademy’s Pre-Algebra channel:: https://www.youtube.com/channel/UCIMlYkATtXOFswVoCZN7nAA?sub_confirmation=1
Subscribe to KhanAcademy: https://www.youtube.com/subscription_center?add_user=khanacademy - Video Language:
- English
- Team:
Khan Academy
- Duration:
- 01:14
![]() |
Fran Ontanaya edited Korean subtitles for Converting decimals to fractions example 3 | Decimals | Pre-Algebra | Khan Academy | |
![]() |
Fran Ontanaya edited Korean subtitles for Converting decimals to fractions example 3 | Decimals | Pre-Algebra | Khan Academy |