Ratios

Front

What is a ratio?

Back

A ratio is a relationship between two numbers that shows how many times the first number contains the second.

Front

How do you write a ratio?

Back

Ratios can be written in three ways: using a colon (e.g., 3:5), the word 'to' (e.g., 3 to 5), or as a fraction (e.g., 3/5).

Front

What does it mean to simplify a ratio?

Back

Simplifying a ratio means reducing it to its simplest form by dividing both terms by their greatest common divisor.

Front

If there are 4 red marbles and 8 blue marbles, what is the ratio of red to blue marbles?

Back

The ratio of red to blue marbles is 1:2.

Front

What is the ratio of seals to animals if there are 3 seals and 8 animals?

Back

The ratio of seals to animals is 3:8.

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

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

Back

To find the total, add the parts of the ratio together.

Front

In a fruit bowl with 4 apples, 2 bananas, and 5 pears, what is the ratio of pears to all fruit?

Back

The ratio of pears to all fruit is 5:11.

Front

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

Back

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

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.