10/16 Flashcard: 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 do you write a ratio?

Back

A ratio can be written using the word 'to' or as a fraction. For example, the ratio of 3 to 2 can be written as 3:2 or 3/2.

Front

What does the ratio 2:5 mean?

Back

The ratio 2:5 means that for every 2 of one quantity, there are 5 of another quantity.

Front

If there are 3 blue marbles and 5 yellow marbles, what is the ratio of blue to yellow?

Back

The ratio of blue to yellow is 3:5.

Front

In a garden with 20 daisies and 2 roses, what is the ratio of daisies to roses?

Back

The ratio of daisies to roses is 20:2, which simplifies to 10:1.

Front

What is the ratio of red marbles to yellow marbles if there are 2 red and 5 yellow?

Back

The ratio of red to yellow is 2:5.

Front

How can you determine which quantity is greater in a ratio?

Back

You can compare the two quantities directly or simplify the ratio to see which number is larger.

Front

What does it mean if a ratio is simplified?

Back

A simplified ratio is expressed in its lowest terms, meaning that both quantities have been divided by their greatest common factor.

Front

If the ratio of cats to dogs is 6:4, what is the simplified ratio?

Back

The simplified ratio of cats to dogs is 3:2.

Front

What is the relationship described by the ratio 5:4?

Back

For every 5 of one quantity, there are 4 of another quantity.