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, often expressed as 'a:b'.

Front

How do you simplify a ratio?

Back

To simplify a ratio, divide both terms by their greatest common divisor (GCD).

Front

If the ratio of cats to dogs is 3:2 and there are 12 cats, how many dogs are there?

Back

8 dogs.

Front

What does it mean if a ratio is 1:4?

Back

It means for every 1 of the first quantity, there are 4 of the second quantity.

Front

If the ratio of apples to oranges is 5:3 and there are 15 apples, how many oranges are there?

Back

9 oranges.

Front

What is the total number of parts in the ratio 2:3?

Back

5 parts.

Front

If a recipe calls for a ratio of 2:1 for sugar to flour, how much flour is needed if 4 cups of sugar are used?

Back

2 cups of flour.

Front

How do you find the total quantity from a ratio?

Back

Add the parts of the ratio together and multiply by the value of one part.

Front

If the ratio of boys to girls in a class is 4:5 and there are 20 boys, how many girls are there?

Back

25 girls.

Front

What is a part-to-part ratio?

Back

A part-to-part ratio compares different parts of a whole, such as the ratio of boys to girls.