math

Can someone please help me with this math problem. My teacher is looking for me to show my work, but I don't how to solve the problem to show my work. Please help!!! The problem is 2 1/2 + 3 1/4 + 3 5/8. Thank you for your help.

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asked by adore001
  1. 2 1/2 + 3 1/4 + 3 5/8

    First you need to find the common denominator -- which is 8.

    Then convert each fraction to the common denominator.

    2 1/2 = 2 4/8
    3 1/4 = 3 2/8

    Add:

    2 4/8 + 3 2/8 + 3 5/8

    What do you get?

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    posted by Ms. Sue
  2. Hi Sue,

    Thanks for responding so promptly. After adding the problem I got 8 11/8 but my answer isn't one of the multiple choices. What am I doing wrong now? The multiple choices are 10 3/8, 9 3/8, 7 3/8 or 8 3/8. Thanks again for your help.

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    posted by adore001
  3. Your answer of 8 11/8 is right. But you need to reduce or simplify it.

    8 11/8 = 9 3/8

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    posted by Ms. Sue
  4. Sue, thank you so very much. I now will practice this problem for future references. Thanks again.

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    posted by adore001
  5. You're welcome, Adore.

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    posted by Ms. Sue
  6. what precent of 3.5 is 7.2? show your work please.

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    posted by Martha

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