Ratios

Front

What is a ratio?

Back

A ratio is a comparison of two quantities that shows how many times one value contains or is contained within the other.

Front

How can a ratio be expressed?

Back

A ratio can be expressed in three ways: as a fraction (e.g., 3/4), with a colon (e.g., 3:4), or in words (e.g., 3 to 4).

Front

What is the ratio of red apples to green apples if there are 4 red apples and 3 green apples?

Back

4 to 3

Front

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

Back

2 to 3

Front

What is the ratio of green marbles to red marbles if there are 3 green marbles and 2 red marbles?

Back

3 to 2

Front

In a bag with 3 blue marbles, 2 red marbles, and 5 yellow marbles, what is the ratio of red to yellow marbles?

Back

2 to 5

Front

Which of the following is NOT a way to write a ratio: 3=4, 3:4, 3/4, 3 to 4?

Back

3=4

Front

What does it mean if a ratio is simplified?

Back

A simplified ratio means that the quantities have been reduced to their smallest whole number form.

Front

If the ratio of cats to dogs is 3:5, how many cats are there if there are 15 dogs?

Back

9 cats (because 3/5 = x/15, so x = 9).

Front

What is the ratio of 10 oranges to 5 apples?

Back

2 to 1