Rewrite 1/4 book 1/3 hour as a unit rate a. 12 books/hour
b. 1 1/3 books/hour
c. 1/12 books/hour
d. 3/4 book/hour

3/4 books an hour Henry

The first one, i believe, would be correct. all the others have one thing in common, and that's that they have repeating numbers. in the second one, x and y have repeating 6's and 3's, and in the third, x and y have repeating 6's as well. in the last one, there are repeating 3's. the first one has no repeating numbers.

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