Intro to Ratios

Front

What is a ratio?

Back

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

Front

How do you express a ratio?

Back

A ratio 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 ratio of dogs to all pets if there are 2 dogs, 4 cats, and 5 hamsters?

Back

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

Front

How do you simplify a ratio?

Back

To simplify a ratio, divide both terms by their greatest common divisor (GCD).

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, which can be simplified to 5:3.

Front

What is an equivalent ratio?

Back

An equivalent ratio is a ratio that expresses the same relationship between numbers, even if the numbers themselves are different.

Front

What is the equivalent ratio of 12:20?

Back

The equivalent ratio of 12:20 is 3:5.

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

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

Back

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

Front

What is the ratio of smiley faces to hearts if there are 4 smiley faces and 6 hearts?

Back

The ratio of smiley faces to hearts is 4:6, which can be simplified to 2:3.