Answer:
Step-by-step explanation:
There are several ways you can determine the equivalence of two ratios:
- Reduce each one to lowest terms. Equivalent ratios will have identical lowest terms.
- Perform the division indicated by the ratio. Equivalent ratios will have identical quotients.
- Multiply each ratio by the product of the denominators. Equivalent ratios will have identical products.
For these problems, these methods look like ...
17. In lowest terms: 8/5 and 6/5. (not equivalent)
Performing the division: 1.6 and 1.2. (not equivalent)
Multiplying each by 100: 160 and 120. (not equivalent)
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18. In lowest terms: 1/20 and 1/20. (equivalent)
Performing the division: 0.05 and 0.05. (equivalent)
Multiplying each by 1000: 50 and 50. (equivalent)
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19. In lowest terms: 1/4 and 1/4. (equivalent)
Performing the division: 0.25 and 0.25. (equivalent)
Multiplying each by 249.6: 62.4 and 62.4. (equivalent)
