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Ratio Ratios are pairs of numbers that are used to compare two quantities. Ratios can be written three ways - with the word to, with a colon, or as a fraction example: What is the ratio of dogs to cats? 3 to 1 3:1 3 1 Write each ratio three ways. 1. What is the ratio of spoons to forks? 7 to 4 7 : 4 7 4 2. What is the ratio of snakes to mice? 2 ...
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