Ratios & Proportions FSMS

Front

What is a ratio?

Back

A ratio is a comparison of two quantities by division, expressed as a fraction, such as 3:1 or 3/1.

Front

What does it mean for two ratios to be in proportion?

Back

Front

How do you solve a proportion?

Back

Front

What is a unit rate?

Back

A unit rate is a ratio that compares a quantity to one unit of another quantity, such as miles per hour or price per item.

Front

How do you simplify a ratio?

Back

To simplify a ratio, divide both terms by their greatest common factor (GCF). For example, the ratio 12:4 simplifies to 3:1.

Front

What is a proportional relationship?

Back

A proportional relationship is one where two quantities maintain a constant ratio or unit rate.

Front

How can you tell if a graph represents a proportional relationship?

Back

A graph represents a proportional relationship if it is a straight line that passes through the origin (0,0).

Front

What is the cross product in a proportion?

Back

The cross product is the product of the means and the product of the extremes in a proportion, used to determine if two ratios are equal.

Front

Back

Yes, these ratios are in proportion because they are equal.

Front

What is the simplest form of the ratio 12 CDs to 4 tapes?

Back

The simplest form of the ratio 12:4 is 3:1.