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  1. Oxford American Dictionary

    proper fraction

    • IPA[ˈpräpər ˈfrakSHən]

    美式

    • n.
      a fraction that is less than one, with the numerator less than the denominator.

    • noun: proper fraction, plural noun: proper fractions

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    proper fraction

    英式

    • n.
      a fraction that is less than one, with the numerator less than the denominator.

    Oxford Dictionary