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-   -   Subtracting Mixed Numbers (https://www.askmehelpdesk.com/showthread.php?t=91367)

  • May 10, 2007, 06:13 PM
    tracy205
    Subtracting Mixed Numbers
    Could anyone tell me the correct answer for 6 1/4 - 3 1/3
  • May 10, 2007, 06:24 PM
    gogosean
    Quote:

    Originally Posted by tracy205
    Could anyone tell me the correct answer for 6 1/4 - 3 1/3

    Convert the denominators to a common one, like 12. To change 1/4 to 3/12 multiply this fraction by 3 on top and bottom. To change 1/3 , multiply top and bottom by 4, which would be 4/12. Now , for both fractions multiply the whole numbers, 6 and 3, by your common denominator, which is 12. 6*12=72 and 3*12 = 36. Now add the whole numbers to the numerators of their respective fractions an simplify. (72+3)/12 - (36+4)/12.

    I am pretty tired, so check the math and finish it up. Don't forge to simplify!!
  • May 10, 2007, 07:08 PM
    tracy205
    Quote:

    Originally Posted by gogosean
    Convert the denominators to a common one, like 12. to change 1/4 to 3/12 multiply this fraction by 3 on top and bottom. to change 1/3 , multiply top and bottom by 4, which would be 4/12. Now , for both fractions multiply the whole numbers, 6 and 3, by your common denominator, which is 12. 6*12=72 and 3*12 = 36. now add the whole numbers to the numerators of their respective fractions an simplify. (72+3)/12 - (36+4)/12.

    I am pretty tired, so check the math and finish it up. Don't forge to simplify!!!!!

    Thank You, my sons teacher is teaching him differently, and I wasn't sure if I was doing it right. Its been so long since Ive done any of this , Thanks

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