Ratios and Proportions

Front

What is a Ratio?

Back

A ratio is a comparison of two quantities.

Front

If there is a ratio of 3 dogs to 5 cats, what is the part to whole relationship?

Back

3 to 8

Front

What is the ratio of staff members to students if there are 450 students and 50 staff members?

Back

1:9

Front

What is the unit rate of 624 calories in 3 servings?

Back

208 calories per serving

Front

What does it mean to find a unit rate?

Back

To find a unit rate means to determine how much of one quantity corresponds to one unit of another quantity.

Front

How do you express a ratio?

Back

A ratio can be expressed in three ways: as a fraction, with a colon (e.g., 3:5), or with the word 'to' (e.g., 3 to 5).

Front

What is a proportion?

Back

A proportion is an equation that states that two ratios are equal.

Front

If a recipe calls for 2 cups of flour for every 3 cups of sugar, what is the ratio of flour to sugar?

Back

2:3

Front

How can you simplify the ratio 4:8?

Back

By dividing both sides by 4, the simplified ratio is 1:2.

Front

What is the relationship between ratios and fractions?

Back

Ratios can be expressed as fractions, where the first quantity is the numerator and the second quantity is the denominator.