# 7.17: Smart Shopping Extras

Created by: CK-12

**Extra for Experts – Smart Shopping - Reason Proportionally Using Least Common Multiples**

**Solutions**

**What is the least common multiple of 4 and 5? Which store has the better buy? How did you figure it out?**

**What is the least common multiple of 2 and 4? Which store has the better buy? How did you figure it out?**

**What is the least common multiple of 4 and 6? Which store has the better buy? How did you figure it out?**

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Feb 23, 2012## Last Modified:

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