Writing 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 in words (e.g., 3 to 2).

Front

What is the ratio of school apps to game apps if Kelly has 5 school apps and 3 game apps?

Back

5 to 3

Front

If there are 4 birds and 6 snakes, what is the ratio of birds to total animals?

Back

4/10

Front

What is a part-to-part ratio?

Back

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

Front

What is a part-to-whole ratio?

Back

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

Front

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

Back

5 to 11 (part-to-whole ratio).

Front

What is the ratio of flames to arms on a candle if there are 3 flames and 2 arms?

Back

3:2

Front

What is an example of a real-life ratio?

Back

4 meatballs : 1 cup of sauce.

Front

How do you simplify a ratio?

Back

To simplify a ratio, divide both sides by their greatest common factor.