Ratios: Introduction

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 can a ratio be expressed?

Back

Front

What is the ratio of triangles to squares to circles if there are 3 triangles, 4 squares, and 5 circles?

Back

The ratio is 3:4:5.

Front

If there are 5 boys and 7 girls, what is the ratio of girls to boys?

Back

The ratio of girls to boys is 7 to 5.

Front

Which ratio is equivalent to 5 to 4?

Back

The equivalent ratio is 25 to 20.

Front

Which ratio is equivalent to 3:4?

Back

The equivalent ratio is 6:8.

Front

What is the incorrect way to write a ratio?

Back

The incorrect way to write a ratio is 3=4.

Front

If a recipe calls for 2 cups of flour to 3 cups of sugar, what is the ratio of flour to sugar?

Back

The ratio of flour to sugar is 2:3.

Front

How do you simplify the ratio 10:15?

Back

To simplify the ratio 10:15, divide both numbers by their greatest common divisor, which is 5. The simplified ratio is 2:3.

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.