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 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 a ratio of 4:3 mean?

Back

A ratio of 4:3 means that for every 4 units of the first quantity, there are 3 units of the second quantity.

Front

If there are 8 red apples and 6 green apples, what is the ratio of red apples to green apples?

Back

The ratio of red apples to green apples is 8:6, which simplifies to 4:3.

Front

What is the ratio of triangles to squares if there are 4 triangles and 3 squares?

Back

The ratio of triangles to squares is 4:3.

Front

How can ratios be expressed?

Back

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

Front

What is the ratio of red circles to blue stars if there are 7 red circles and 4 blue stars?

Back

The ratio of red circles to blue stars is 7:4.

Front

If the ratio of boys to girls in a class is 2:3, how many boys are there if there are 15 girls?

Back

If the ratio is 2:3, then for every 3 girls, there are 2 boys. If there are 15 girls, there are 10 boys.

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 in a class.

Front

What is a part-to-whole ratio?

Back

A part-to-whole ratio compares a part of a quantity to the entire quantity, such as the ratio of red apples to all apples.