Ratios and Proportions

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 proportion?

Back

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

Front

How can you find a missing value in a proportion?

Back

Cross-multiply the known values and solve for the unknown value.

Front

What is the ratio of single hits to homeruns if there are 4 single hits and 1 homerun?

Back

4 to 1.

Front

If a pizza has 8 slices and costs $12, what is the cost per slice?

Back

$1.50 per slice.

Front

What is the simplified form of the ratio 35:14?

Back

5:2.

Front

If Jerry types 35 words per minute, how long will it take him to type 500 words?

Back

It will take him approximately 14.29 minutes.

Front

What is the first step in solving a ratio problem?

Back

Identify the quantities being compared and express them as a ratio.

Front

How do you express a ratio in fraction form?

Back

A ratio can be expressed as a fraction by placing the first quantity over the second quantity.