Ratios and Proportions

Front

What is a ratio?

Back

A ratio is a comparison of two quantities that shows how many times one value contains or is contained within the other.

Front

How do you express a ratio?

Back

Ratios can be expressed in three ways: using a colon (e.g., 2:3), as a fraction (e.g., 2/3), or with the word 'to' (e.g., 2 to 3).

Front

What is the simplest form of a ratio?

Back

The simplest form of a ratio is when the two quantities are reduced to their smallest whole number values.

Front

If there are 12 apples and 8 oranges, what is the ratio of apples to oranges?

Back

3:2

Front

What is a proportion?

Back

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

Front

How do you solve a proportion?

Back

To solve a proportion, you can use cross-multiplication.

Front

If 4/5 = x/20, what is the value of x?

Back

x = 16

Front

What is an example of a real-life ratio?

Back

A recipe that calls for 2 cups of flour to 1 cup of sugar (2:1).

Front

How do you write the ratio of girls to boys if there are 6 girls and 4 boys?

Back

The ratio of girls to boys is 6:4, which simplifies to 3:2.

Front

What is the ratio of 15 to 25 in simplest form?

Back

The simplest form is 3:5.