Ratios

Front

What is a ratio?

Back

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

Front

How do you write a ratio?

Back

Ratios can be written in three ways: using a colon (e.g., 3:2), as a fraction (e.g., 3/2), or in words (e.g., '3 to 2').

Front

What does it mean if a ratio is simplified?

Back

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

Front

What is the ratio of 4 apples to 2 oranges?

Back

The ratio of 4 apples to 2 oranges is 2:1 when simplified.

Front

If there are 10 boys and 5 girls in a class, what is the ratio of boys to girls?

Back

The ratio of boys to girls is 10:5, which simplifies to 2:1.

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.

Front

What is a part-to-whole ratio?

Back

A part-to-whole ratio compares a part to the entire group, such as the ratio of boys to the total number of students.

Front

How do you find the total number of parts in a ratio?

Back

To find the total number of parts, add the numbers in the ratio together.

Front

What is the ratio of 3 red marbles to 5 blue marbles?

Back

The ratio of red marbles to blue marbles is 3:5.

Front

If a recipe calls for 2 cups of flour and 3 cups of sugar, what is the ratio of flour to sugar?

Back

The ratio of flour to sugar is 2:3.