Ratios

Front

What is a ratio?

Back

A ratio is a comparison of two quantities that shows the relative size of one quantity to another.

Front

What does a part to part ratio compare?

Back

A part to part ratio compares one part of a group to another part of the same group.

Front

In a ratio of 4:5, what does the number 4 represent?

Back

The number 4 represents the part of the first group (e.g., girls) in the ratio.

Front

If there are 90 students and the ratio of girls to boys is 4:5, how many girls are there?

Back

40 girls.

Front

If 8 out of 24 students wear glasses, what is the ratio of students who wear glasses?

Back

The ratio is 1:3.

Front

How do you simplify the ratio 8:4?

Back

Divide both numbers by their greatest common divisor, which is 4, resulting in 2:1.

Front

What is the simplest form of the ratio 10:15?

Back

The simplest form is 2:3.

Front

If a recipe calls for 2 cups of flour and 1 egg, what is the ratio of flour to eggs?

Back

The ratio of flour to eggs is 2:1.

Front

If a large batch of cookie dough requires 6 cups of flour, how many eggs are needed if the ratio remains the same?

Back

3 eggs.

Front

What is a part to whole ratio?

Back

A part to whole ratio compares a part of a group to the entire group.