5th grade math

please help solved the following fraction

11 13/15 + 3 7/12 =

14 3/4 + 7 + 5 7/8 =

Thanks,

Hannah

asked by hannah
  1. First find the common denominator and change the fractions to equivalent fractions.

    11 13/15 = 11 52/60
    3 7/12 = 3 35/60

    Then add.

    11 52/60 + 3 35/60 = 14 87/60 = 15 27/60 = 15 9/20

    Now you can try the second problem. I'll be glad to check your work.

    posted by Ms. Sue
  2. Hannah,

    For the first problem with the first mixed number, you would multiply 11 and 15 and add 13. So it would be 178/15 because you still use the demominator. Then you mulitply 3 and 12 and add 7. So that would be 43/12.

    So the question is 178/15 + 43/12=

    Can you solve it from there?

    The next one would be 59/4 + 47/8=

    Find the common demominators and then solve.

    posted by Ashley
  3. Hello Ms. Sue,

    How did you get 15 27/60 please?

    Thanks,

    Hannah

    posted by hannah
  4. 14 87/60 = 15 27/60

    Divide 87 by 60 to get 1 27/60.

    Add that to 14 to get 15 27/60

    posted by Ms. Sue
  5. I am sorry, can u show your division please. when i divide 87 for 60 i get 1.45. Please help!

    posted by hannah
  6. Divide using long division.

    posted by Ms. Sue
  7. and how do i do that please

    posted by hannah
  8. Study this site.

    http://www.mathsisfun.com/long_division2.html

    posted by Ms. Sue
  9. that website is great we go on it at school

    posted by serenity

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