Math

I have math fractions to add. I never went over these ,so please help.
7/8 + 3/4 + 15/24=
5/9 + 6/7= 4/5 + 11/15 + 17/30 =
1 7/8 + 2 11/16 =

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asked by Renriki
  1. You need to use a common denominator and equivalent fractions when adding or subtracting fractions.

    The common denominator for 8, 4, and 24 is 24.
    7/8 = 21/24
    3/4 = 18/24

    Add the numerators:

    21/24 + 18/24 + 15/24 = 54/24 = 2 6/24 = 2 1/4

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    posted by Ms. Sue
  2. Oh ,ok thanks

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    posted by Renriki
  3. You're welcome.

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    posted by Ms. Sue
  4. 7/8divided 5/6 write answer lowest terms

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    posted by karm

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