Ratios

Front

What is a Ratio?

Back

A ratio is a comparison of two quantities.

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 7:5.

Front

What are three ways to write a ratio?

Back

1. Using 'to' (e.g., 7 to 5) 2. Using a colon (e.g., 7:5) 3. As a fraction (e.g., 7/5)

Front

In a pet shop with 2 dogs, 4 cats, and 5 hamsters, what is the ratio of dogs to all pets?

Back

The ratio of dogs to all pets is 2:11.

Front

What does part-to-part ratio mean?

Back

A part-to-part ratio compares two different parts of a whole.

Front

What does part-to-whole ratio mean?

Back

A part-to-whole ratio compares a part to the entire whole.

Front

How can you simplify a ratio?

Back

By dividing both quantities by their greatest common divisor.

Front

What is the ratio of 10 apples to 5 oranges?

Back

The ratio of apples to oranges is 2:1.

Front

If the ratio of boys to girls is 3:4, how many boys are there if there are 28 girls?

Back

There are 21 boys.

Front

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

Back

The simplest form of the ratio 15:25 is 3:5.