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Ratio and Proportional Relationships: Introduction to Ratios and Proportionality
Understanding Proportions
Description
Understanding Proportions
Introduction
Proportions describe situations where two ratios are equal and show how quantities are related. They help explain how two quantities change together and are commonly used to s...
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Transcript
Alex buys granola bars at a grocery store, and two granola bars cost $4.
He compares two quantities: the number of granola bars bought and the amount of money spent. So, the ratio of granola bars to dollars is two to four, meaning 2 bars cost $4.
We can write this ratio as a fraction, two over four, and simplify it to one to two by d...
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