Podcast
Questions and Answers
Which of the following is an example of a ratio?
Which of the following is an example of a ratio?
- 4 x 6
- 7 - 1
- 2:3 (correct)
- 3 + 5
What are the names of the three types of ratios?
What are the names of the three types of ratios?
- part to part, part to percent, part to fraction
- part to whole, part to part, part to half
- part to part, part to whole, ratio as a fraction (correct)
- part to part, part to some, fraction to whole
What is the proportion of boys to girls in a class if there are 12 boys and 18 girls?
What is the proportion of boys to girls in a class if there are 12 boys and 18 girls?
- 2:3 (correct)
- 5:4
- 3:2
- 4:5
If a recipe calls for 2 cups of flour and you want to make half of the recipe, how many cups of flour do you need?
If a recipe calls for 2 cups of flour and you want to make half of the recipe, how many cups of flour do you need?
Convert the fraction 3/5 to a percent.
Convert the fraction 3/5 to a percent.
Flashcards
Example of a ratio
Example of a ratio
A relationship between two quantities showing how many times one value contains or is contained within the other, such as 2:3.
Types of ratios
Types of ratios
The three types are part to part, part to whole, and ratio as a fraction.
Boys to girls ratio
Boys to girls ratio
For 12 boys and 18 girls, the ratio is simplified to 2:3.
Halved recipe measurement
Halved recipe measurement
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Convert fraction to percent
Convert fraction to percent
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Study Notes
Ratios and Proportions
- A ratio is a comparison of two quantities, often expressed as a fraction, percentage, or rate.
- There are three types of ratios: part-to-part, part-to-whole, and rate.
- In a class with 12 boys and 18 girls, the proportion of boys to girls is 12:18 or 2:3.
- To find half of a recipe that calls for 2 cups of flour, you need to divide the amount of flour by 2, so you need 1 cup of flour.
- The fraction 3/5 can be converted to a percent by dividing the numerator by the denominator and multiplying by 100: (3 ÷ 5) × 100 = 60%.
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