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Rudiy27
3 years ago
10

A math textbook is 1 1/4 in. thick. how much shelf space is needed for 30 copies of the book?

Mathematics
1 answer:
inysia [295]3 years ago
8 0
Hello!

You have to multiply 1 1/4 by 30 because each math book is 1 1/4 in. thick, and 30 books is 1 1/4 by 30. First change 30 and 1 1/4 to an improper fraction.

\frac{30}{1} \times    \frac{5}{4} =  \frac{150}{4} =  37  \frac{1}{2}

\framebox{37 1/2 inches}
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