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Ms. Bauer corrected 2⁄3 of the science quizzes. Mr. Richardson corrected 2⁄7 of the quizzes. What fraction of the science quizzes has been corrected?

User Narfanator
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1 Answer

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We must add 2/3 and 2/7.
We have to convert these to fractions with "21" as the denominator.
14/21 plus 6/21 =
20/21 of the quizzes have been corrected.


User Maryann
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