Grade 8 Ratio Problems Worksheet
A worksheet for 8th-grade students covering ratio problems, including simplifying ratios, finding equivalent ratios, and solving real-world ratio applications.
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Standards
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Grade 8 Ratio Problems
Name:
Date:
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Read each question carefully and solve the ratio problems. Show your work where applicable.
1. A recipe calls for 2 cups of flour for every 3 cups of sugar. If you use 6 cups of flour, how much sugar do you need?
4 cups
6 cups
9 cups
12 cups
2. The ratio of boys to girls in a class is 5:4. If there are 20 boys, how many girls are there?
16 girls
20 girls
25 girls
30 girls
3. The ratio 12:18 simplified to its lowest terms is .
4. If a car travels 200 miles in 4 hours, its speed in miles per hour is .
5. A map has a scale of 1 inch = 50 miles. If two cities are 3.5 inches apart on the map, what is the actual distance between them?
6. A mixture requires paint and thinner in a ratio of 3:1. If you have 6 liters of paint, how much thinner do you need?
7. The ratio 4:8 is equivalent to 1:2.
True
False
8. A unit rate always has a denominator of 1.
True
False
Match each ratio problem to its correct answer.
9. Ratio of apples to oranges is 2:3. If 10 apples, how many oranges?
a. 15
10. Cost of 3 pens is $6. Cost of 5 pens?
b. $10
11. Speed of 60 miles in 2 hours. Distance in 3 hours?
c. 90 miles
12. Sarah is making lemonade. The recipe calls for a ratio of 4 lemons to 1 cup of sugar. If she uses 12 lemons, how many cups of sugar will she need? Explain your reasoning.
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