Understanding Ratios and Fractions

This lesson explores the similarities and differences between ratios and fractions. It explains how ratios can be expressed in fraction notation and highlights the distinction between part-to-part and part-to-total ratios. The lesson uses examples and pictures to clarify these concepts, emphasizing that not all ratios are fractions. Part-to-total ratios can be considered fractions, while part-to-part ratios cannot. The lesson concludes by advising the use of units to avoid confusion when writing part-to-part ratios.

What are the two types of ratios discussed in the lesson?

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What common mistake do people make regarding ratios and fractions?

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Why is the ratio 3:5 not considered a fraction?

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Explain the difference between part to part ratios and part to total ratios.

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How can you clearly indicate that you are writing a part to part ratio?

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