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OpenStudy (anonymous):
Marie has 10 novels, 4 biographies, 12 mysteries, and 15 magazines on her book self. What fractional part of the reading material is either novels or magazines?
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OpenStudy (anonymous):
\[(10+15)/(10+4+12+15)\]
OpenStudy (anonymous):
so the answers are in ( )?
OpenStudy (hoblos):
25/41
OpenStudy (anonymous):
thank you
OpenStudy (anonymous):
A fraction of something is (the number being counted) / (the total number). So in this case it's the number of books plus the number of magazines divided by the total number of all reading materials. Note that sometimes fractions need to be further simplified, if there are common multiples in the numerator and denominator (here there are not).
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