Ratios (6th Grade)

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 to b' or a:b.

Front

How do you simplify a ratio?

Back

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

Front

What does it mean if two ratios are equivalent?

Back

Two ratios are equivalent if they represent the same relationship between quantities, meaning they can be expressed as a fraction that simplifies to the same value.

Front

If the ratio of cats to dogs is 2:3 and there are 10 cats, how many dogs are there?

Back

15 dogs.

Front

What is the ratio of part to part?

Back

A part to part ratio compares two parts of a whole, such as the ratio of boys to girls in a class.

Front

What is the ratio of whole to part?

Back

A whole to part ratio compares the total amount to one of its parts, such as the ratio of total students to girls in a class.

Front

What is the ratio of part to whole?

Back

A part to whole ratio compares a part to the entire group, such as the ratio of red marbles to all marbles.

Front

If there are 12 apples and 8 oranges, what is the ratio of apples to oranges?

Back

3:2.

Front

What is cross multiplication in ratios?

Back

Cross multiplication is a method used to determine if two ratios are equivalent by multiplying the outer terms and the inner terms.

Front

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

Back

25 girls.