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. It can be expressed in three ways: as a fraction, with a colon, or in words.

Front

How do you write the ratio of 2 to 3?

Back

The ratio of 2 to 3 can be written as 2:3, 2/3, or '2 to 3'.

Front

What is the ratio of pears to all fruit if there are 4 apples, 2 bananas, and 5 pears?

Back

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

Front

What is the ratio of green dots to orange dots if there are 3 green dots and 5 orange dots?

Back

The ratio of green dots to orange dots is 3:5.

Front

What are the three ways to express a ratio?

Back

A ratio can be expressed as a fraction (e.g., 2/3), with a colon (e.g., 2:3), or in words (e.g., '2 to 3').

Front

What is a part-to-part ratio?

Back

A part-to-part ratio compares two parts of a whole. For example, in a bag of M&Ms, if there are 5 red and 10 blue, the part-to-part ratio of red to blue is 5:10.

Front

What is a part-to-whole ratio?

Back

A part-to-whole ratio compares a part to the entire group. For example, if there are 5 red M&Ms in a bag of 16 total M&Ms, the part-to-whole ratio of red to all M&Ms is 5:16.

Front

If a recipe calls for 2 cups of flour and 3 cups of sugar, what is the ratio of flour to sugar?

Back

The ratio of flour to sugar is 2:3.

Front

How can you simplify the ratio 8:12?

Back

To simplify the ratio 8:12, divide both numbers by their greatest common divisor, which is 4. The simplified ratio is 2:3.

Front

What is the ratio of 10 apples to 5 oranges?

Back

The ratio of 10 apples to 5 oranges is 10:5, which simplifies to 2:1.