5.2 - Ratio practice

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 divisor (GCD).

Front

What is the ratio of red toy cars to all toy cars if there are 3 red cars and 7 other cars?

Back

The ratio is 3:10.

Front

If a triangle has angles in the ratio of 1:2:3, how do you find the angle measures?

Back

Let the angles be x, 2x, and 3x. The sum is x + 2x + 3x = 180°. Solve for x to find the angles.

Front

What is an equivalent ratio?

Back

An equivalent ratio is a ratio that expresses the same relationship between two quantities, even if the numbers are different.

Front

How do you find an unknown value using equivalent ratios?

Back

Set up a proportion using the known ratios and cross-multiply to solve for the unknown value.

Front

What is the simplest form of the ratio 8:12?

Back

The simplest form is 2:3.

Front

If there are 10 frisbees and 8 bones in a pet store, what is the ratio of bones to frisbees?

Back

The ratio is 4:5.

Front

What is the extended ratio of a triangle's angles if they are in the ratio of 1:2:3?

Back

The extended ratio is 1:2:3, which corresponds to angles of 30°, 60°, and 90°.

Front

How do you express a ratio as a fraction?

Back

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