Equivalent Ratios/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

What is an equivalent ratio?

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 simplify a ratio?

Back

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

Front

What is the ratio of 4 birds to 6 snakes?

Back

The ratio of birds to snakes is 2:3.

Front

If a car travels 280 miles in 7 hours, what is its speed in miles per hour?

Back

The speed is 40 miles per hour.

Front

How do you find a missing value in a proportion?

Back

To find a missing value in a proportion, use cross-multiplication and solve for the unknown.

Front

What is a proportion?

Back

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

Front

If 88 students are divided into 4 classes, how many students are in each class?

Back

There are 22 students per class.

Front

What is the ratio of birds to total animals if there are 4 birds and 6 snakes?

Back

The ratio of birds to total animals is 4:10.

Front

How can you express the ratio 12:16 in simplest form?

Back

The simplest form of the ratio 12:16 is 3:4.