Converting decimals to fractions 1 (ex 3)
-
0:00 - 0:08La oss se om vi kan skrive
0,36 som en brøk. -
0:08 - 0:12Det er flere måter å gjøre det på.
Jeg foretrekker å tenke at -
0:12 - 0:160,36 er det samme som 36 hundredeler.
-
0:16 - 0:21Eller vi kan tenke på det som at
dette er hundredelsplassen. -
0:21 - 0:28Dette er tidelsplassen - <i>eller</i> du kan
se på dette som 30 hundredeler. -
0:28 - 0:31Dette kan være 3 tideler,
eller 30 hundredeler. -
0:31 - 0:38Så dette er det samme som 36 hundredeler,
eller det er lik 36 <i>over</i> 100. -
0:38 - 0:42Vi har allerede uttrykt det som en brøk,
men nå kan vi forkorte, -
0:42 - 0:50siden 36 og 100 har felles faktorer.
Begge ser ut til å være delelige med 4, -
0:50 - 0:56så hvis vi deler både telleren og nevneren
med 4 (vi gjør det samme med begge, -
0:56 - 1:04så vi endrer ikke verdien av brøken),
36 delt på 4 er 9. Og 100 delt på 4 er 25. -
1:04 - 1:08Og disse to tallene ser ikke ut til å ha
noen andre felles faktorer, -
1:08 - 1:13så 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
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- Team:
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- Duration:
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