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 is a ratio expressed?

Back

A ratio can be expressed 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 does a part-to-part ratio represent?

Back

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

Front

What does a part-to-whole ratio represent?

Back

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

Front

If there are 3 red balls and 5 blue balls, what is the ratio of red balls to blue balls?

Back

3:5

Front

If there are 10 apples and 4 of them are red, what is the part-to-whole ratio of red apples?

Back

4:10 or simplified to 2:5.

Front

What is the ratio of 12 noodles to 4 meatballs?

Back

3:1

Front

How can you simplify the ratio 8:12?

Back

By dividing both sides by 4, it simplifies to 2:3.

Front

What is another way to write the ratio 6:7?

Back

6/7 or 6 to 7.

Front

In a recipe, if the ratio of sugar to flour is 2:5, how much sugar is needed for 10 cups of flour?

Back

4 cups of sugar (2/5 of 10).