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Can you answer this 4 th grade question?

There are twelve eggs in the carton. Three of the eggs are cracked. What Fraction of the eggs are Not cracked?

What is the answer and how did you come up with the answer? Why is the answer correct? How did you know?

My ds said the answer is 9/12, dh said 3/4 ( ? ) and I said 3/5. They both tell me I'm wrong and to prove it.

Help? lol

Answer Question
 
Anonymous

Asked by Anonymous at 1:06 PM on Apr. 29, 2011 in

Answers (20)
  • 9/12 IS 3/4. You take the portion of eggs not cracked (9), out of the total number of eggs (12) to get 9/12, then reduce it to 3/4
    missanc

    Answer by missanc at 1:08 PM on Apr. 29, 2011

  • 9/12, but, you reduce...3/4
    BradenIsMySon

    Answer by BradenIsMySon at 1:08 PM on Apr. 29, 2011

  • EEK... I am glad my husband will be the one helping with math homework ( i was alwasy bad at math lol )
    2lilbumblebees

    Answer by 2lilbumblebees at 1:08 PM on Apr. 29, 2011

  • I suck at math... So IM SO NO HELP. But ill answer anyhow. :) I said 9/12 at first but if you put 3 into both I get 3/4... so I get your son's and dhs answer... again math was my worst subject... I got by with C's in college...
    kiansmom0423

    Answer by kiansmom0423 at 1:09 PM on Apr. 29, 2011

  • peekingOh God, I'm not even smarter than a 4rth Grader!!!!!!!!!

    Dahis

    Answer by Dahis at 1:10 PM on Apr. 29, 2011

  • It's 3/4 which is the same as 9/12, just reduced. I have no idea how I know, it just is.
    mompam

    Answer by mompam at 1:11 PM on Apr. 29, 2011

  • 3/4
    tyfry7496

    Answer by tyfry7496 at 1:13 PM on Apr. 29, 2011

  • 9/12 9 divided3=3 12divided3=4...so, 3/4
    BradenIsMySon

    Answer by BradenIsMySon at 1:14 PM on Apr. 29, 2011

  • yep.....9/12...which is equal to 3/4. So the actual answer would be 3/4...

    To break down the 9/12, you have to find the common denominator...which is 3. 3 goes into 9 evenly & it goes into 12 evenly. So, you divide the 9 by 3...which is 3...then divide the 12 by 3....which is 4...so the answer is 3/4....
    samurai_chica

    Answer by samurai_chica at 1:14 PM on Apr. 29, 2011

  • It's 3/4.
    9 out of the 12 eggs are not cracked. A common denominator of 9 and 12 is 3, so you divide 9 and 12 by 3, which is 3/4. When reducing a fraction, you find the best common denominator that will reduce the numbers furthest and divide both numbers by it.
    vicesix

    Answer by vicesix at 1:18 PM on Apr. 29, 2011

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