Rates, Ratios, and Proportions

Front

Simplify the ratio 15:25.

Back

3:5

Front

What is a unit rate?

Back

A unit rate is a ratio that compares two different quantities with different units of measure.

Front

Simplify the ratio 4:6.

Back

2:3

Front

How much money will Marie make after 20 hours if she earns $9 per hour?

Back

$180

Front

What is a ratio?

Back

A ratio is a comparison of two quantities by division.

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 do you find a unit rate?

Back

To find a unit rate, divide the first quantity by the second quantity.

Front

If a car travels 150 miles in 3 hours, what is the unit rate in miles per hour?

Back

50 miles per hour.

Front

What does it mean to simplify a ratio?

Back

To simplify a ratio means to reduce it to its lowest terms.