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March 28, 2017

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I don't know how to figure..24 girls at the picnic..2/5 at picnic were boys. How many students at picnic?

  • 5th grade fractions - ,

    If 2/5 were boys then 3/5 were girls
    so
    3/5 * number of students = 24
    or number of students = 24 * 5/3

    another way - proportions
    3/5 = 24/number of students
    3*number = 24*5
    number = 24*5/3
    which is 8*5 by the way

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