Rates and Ratios

Front

What is a ratio?

Back

A ratio is a comparison of two quantities by division, showing how many times one value contains or is contained within the other.

Front

How do you simplify a ratio?

Back

To simplify a ratio, divide both terms by their greatest common factor (GCF).

Front

What is a unit rate?

Back

A unit rate is a comparison of a quantity to one unit of another quantity, often expressed as 'per' something (e.g., miles per hour).

Front

How do you find the unit price of an item?

Back

To find the unit price, divide the total price by the number of units (e.g., total cost / number of items).

Front

What does it mean for two ratios to be equivalent?

Back

Two ratios are equivalent if they represent the same relationship between quantities, meaning they can be simplified to the same fraction.

Front

If 3 apples cost $1.50, what is the cost per apple?

Back

$0.50 per apple (calculated as $1.50 / 3 apples).

Front

What is the formula for finding a better buy between two products?

Back

Compare the unit prices of both products; the one with the lower unit price is the better buy.

Front

How can you express 3:5 as a fraction?

Back

3:5 can be expressed as the fraction 3/5.

Front

What is the greatest common factor (GCF) of 12 and 16?

Back

The GCF of 12 and 16 is 4.

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

The ratio of flour to sugar is 2:3.