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In a third grade class 2/5 of the students wear glasses. What fraction of the students do not wear glasses?
If 16 students wear glasses, how many students are in the class altogether?

  • math -

    5/5 - 2/5 = ? students do not wear glasses

    2/5 = 16/x

    Cross multiply and divide

    2x = 80
    x = 40 students in the class

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