Worked example: Converting a fraction (7/8) to a decimal (video) | Khan Academy (2024)

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  • esthervimartin

    12 years agoPosted 12 years ago. Direct link to esthervimartin's post “Video is great but how do...”

    Video is great but how do you know what exact numbers to submit as your answer after the decimal point for the practice segment? Example 7/30 = 0.233333333... but they only took 0.233 as the answer. Could someone please clarify?

    (242 votes)

    • John

      12 years agoPosted 12 years ago. Direct link to John's post “it depends on how are you...”

      Worked example: Converting a fraction (7/8) to a decimal (video) | Khan Academy (4)

      Worked example: Converting a fraction (7/8) to a decimal (video) | Khan Academy (5)

      Worked example: Converting a fraction (7/8) to a decimal (video) | Khan Academy (6)

      it depends on how are you going to round it off.
      for example, the answer should be rounded off to the nearest thousandths then the answer will be 0.233
      but if it said round it of to the nearest hundredths then it will be .23

      (196 votes)

  • kulkainat

    12 years agoPosted 12 years ago. Direct link to kulkainat's post “i get it but how would u ...”

    i get it but how would u do a mixed number?

    (38 votes)

    • Willem Heijboer

      12 years agoPosted 12 years ago. Direct link to Willem Heijboer's post “A mixed number is just th...”

      Worked example: Converting a fraction (7/8) to a decimal (video) | Khan Academy (10)

      Worked example: Converting a fraction (7/8) to a decimal (video) | Khan Academy (11)

      Worked example: Converting a fraction (7/8) to a decimal (video) | Khan Academy (12)

      A mixed number is just the same like other fractions, only that the 'whole number' before the fraction is put before the comma. For instance, now he used the example 7/8 = 0.875. If you have a mixed number like 2 7/8, the answer will be 2.875 etc.

  • 25.jaclyn.siar

    5 years agoPosted 5 years ago. Direct link to 25.jaclyn.siar's post “how do we put this into ...”

    how do we put this into percent?

    (11 votes)

    • Polina Vitić

      5 years agoPosted 5 years ago. Direct link to Polina Vitić's post “You can turn any decimal ...”

      Worked example: Converting a fraction (7/8) to a decimal (video) | Khan Academy (16)

      Worked example: Converting a fraction (7/8) to a decimal (video) | Khan Academy (17)

      You can turn any decimal into a percent - just multiply the decimal x 100!

      For example:
      0.90 (decimal)
      0.90 x 100 = 90
      = 90%

      0.25 (decimal)
      0.25 x 100 = 25
      = 25%

      0.386 (decimal)
      0.386 x 100 = 38.6
      = 38.6%

      Hope this helps!

      (37 votes)

  • SARIN V S

    4 years agoPosted 4 years ago. Direct link to SARIN V S's post “What if the question was ...”

    What if the question was convert 0.9999999...... to a fraction. It gives the answer answer as 1. Why is it coming like this. How is that even possible.

    (10 votes)

    • Ian Pulizzotto

      4 years agoPosted 4 years ago. Direct link to Ian Pulizzotto's post “Interesting question! Con...”

      Worked example: Converting a fraction (7/8) to a decimal (video) | Khan Academy (21)

      Interesting question! Consider the difference 1-0.9999999...... . Clearly this difference is greater than or equal to 0, but less than every decimal in the infinite sequence 0.1, 0.01, 0.001, 0.0001, ... . The only real number that meets all the conditions in the previous sentence is 0. So, in the real number system, the difference 1-0.9999999...... is 0. Therefore 0.9999999...... equals 1 in the real number system!

      (15 votes)

  • James Philpott

    a year agoPosted a year ago. Direct link to James Philpott's post “I put the new Forgis on t...”

    I put the new Forgis on the Jeep
    I trap until the, bloody bottoms is underneath
    'Cause all my n got it out the streets
    I keep a hundred racks inside my jeans
    I remember hittin' the mall with the whole team
    Now a n can't answer calls 'cause I'm ballin'
    I was wakin' up gettin' racks in the mornin'

    (14 votes)

  • levi.marske

    4 years agoPosted 4 years ago. Direct link to levi.marske's post “so what if you have a num...”

    so what if you have a number like pi over another

    (9 votes)

    • Matthew Yung

      3 years agoPosted 3 years ago. Direct link to Matthew Yung's post “Do you mean like π/x (x i...”

      Do you mean like π/x (x is any digit)?
      Normally when we want to do it simple we just leave it like this mainly because pi is irrational and the decimal places are almost infinite.
      If you want to get an approximate answer you will need a calculator.

      (2 votes)

  • Azzabk345

    9 years agoPosted 9 years ago. Direct link to Azzabk345's post “how many zeros we must ad...”

    how many zeros we must add to the 7

    (9 votes)

    • Tanel Kagan

      4 years agoPosted 4 years ago. Direct link to Tanel Kagan's post “You can add as many as yo...”

      You can add as many as you like to begin with, because zero is just that - nothing. It doesn't matter how many you add, it doesn't change the value.

      However, it's sensible to only add as many zeroes as you need, otherwise your working could look messy with a string of zeroes that you might not need.

      That's why the best approach, during the long division process, is to add them one at a time. Each time there is a remainder, you add another zero (you don't actually have to write it in up there, but it helps to keep everything in its correct place) and do your division then subtraction again.

      When no remainder is left, you can stop - no further zeroes are needed and you will have your answer. That is unless your answer is a repeating decimal, in which case you need to be able to recognise that else you will be calculating forever!

      (2 votes)

  • DIEGOF

    4 years agoPosted 4 years ago. Direct link to DIEGOF's post “How can you memorize the ...”

    How can you memorize the multiplication tables?

    (4 votes)

    • Kim Seidel

      4 years agoPosted 4 years ago. Direct link to Kim Seidel's post “Practice, practice and mo...”

      Practice, practice and more practice.
      Start by skip counting: 5, 10, 15, 20, etc.
      Then, start working on more random multiplication. Like what is 5x9?

      You don't have to do every thing at once. Start with the smaller values and work your way up. If you have a friend who also wants to memorize the tables, you can quiz each other.

      (5 votes)

  • pryah.816313

    4 years agoPosted 4 years ago. Direct link to pryah.816313's post “can you do dividing with ...”

    can you do dividing with frations

    (3 votes)

    • KC

      4 years agoPosted 4 years ago. Direct link to KC's post “Yes, it's also the same t...”

      Yes, it's also the same thing as multiplying by the reciprocal.

      (6 votes)

  • Blaine Smith

    11 years agoPosted 11 years ago. Direct link to Blaine Smith's post “how do you know where to ...”

    how do you know where to put the decimal at?

    (6 votes)

    • https://goo.gl/09y5BV

      10 years agoPosted 10 years ago. Direct link to https://goo.gl/09y5BV's post “Before you do the problem...”

      Before you do the problem,
      or divide you place the decimal on top where ever you put
      it when making a decimal.
      Any More Help Just Ask Sir :)
      ~Dassh

      (3 votes)

Worked example: Converting a fraction (7/8) to a decimal (video) | Khan Academy (2024)

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