Ratios and Equivalent Ratios

Front

What is a ratio?

Back

A ratio is a comparison of two quantities expressed as a fraction, indicating how many times one value contains or is contained within the other.

Front

What are equivalent ratios?

Back

Equivalent ratios are two or more ratios that express the same relationship between numbers, even if the numbers themselves are different.

Front

How do you find an unknown value using equivalent ratios?

Back

To find an unknown value using equivalent ratios, set up a proportion between the known ratios and solve for the unknown value.

Front

Are the ratios 4:5 and 8:15 equivalent?

Back

No, the ratios 4:5 and 8:15 are not equivalent because they do not represent the same relationship.

Front

What is the ratio of chocolate chips to flour in a recipe that calls for 3 cups of flour and 2 cups of chocolate chips?

Back

The ratio of chocolate chips to flour is 2:3.

Front

Give an example of a real-life ratio.

Back

An example of a real-life ratio is 4 meatballs to 1 cup of sauce.

Front

How can you simplify a ratio?

Back

To simplify a ratio, divide both terms of the ratio by their greatest common divisor (GCD).

Front

What is the relationship between ratios and fractions?

Back

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

Front

How do you convert a ratio to a percentage?

Back

To convert a ratio to a percentage, divide the first term by the sum of both terms and multiply by 100.

Front

What is a part-to-part ratio?

Back

A part-to-part ratio compares different parts of a whole, such as the ratio of boys to girls in a class.