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The floor of a small foyer will be made from square ceramic tiles. Each tile has a side length of 7 inches. If the dimensions of the foyer floor are 28 inches by 42 inches, how many ceramic tiles are needed?

User Dzimi
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1 Answer

3 votes

It would be 4 2/3

Convert the mixed numbers to improper fractions

Use the algebraic formula for addition of fractions:

a/b + c/d = (ad + bc) / bd

Reduce fractions and simplify if possible

User Nawin
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5.9k points