Introduction to 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

How do you write a ratio?

Back

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

Front

What is the ratio of red toy cars to all toy cars if there are 2 black, 3 red, and 5 white toy cars?

Back

The ratio of red toy cars to all toy cars is 3:10.

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

What does it mean if a ratio is simplified?

Back

A simplified ratio means that the numbers in the ratio have been reduced to their smallest whole number form.

Front

What is the ratio of moons to suns if there are 4 moons and 8 suns?

Back

The ratio of moons to suns is 1:2.

Front

How do you find the total number of items in a ratio?

Back

To find the total number of items in a ratio, add the parts of the ratio together.

Front

What is the ratio of apples to bananas if there are 10 apples and 6 bananas?

Back

The ratio of apples to bananas is 10:6.

Front

What is the ratio of hearts to total shapes if there are 6 hearts and 10 total shapes?

Back

The ratio of hearts to total shapes is 6:10.

Front

How can you express the ratio of 4 to 8 in simplest form?

Back

The simplest form of the ratio 4 to 8 is 1:2.