Intro to 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.

Front

How do you write a ratio?

Back

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

Front

What does 'equivalent' mean in terms of ratios?

Back

Equivalent means that two ratios represent the same relationship, even if the numbers are different.

Front

If there are 4 red apples and 3 green apples, what is the ratio of red apples to green apples?

Back

4 red apples to 3 green apples.

Front

If there are 10 soccer players and 3 coaches, what is the ratio of coaches to players?

Back

3 coaches to 10 players.

Front

What is the ratio of bananas to apples if there are 2 bananas and 14 apples?

Back

2 to 14, which simplifies to 1 to 7.

Front

If there are 5 boys and 7 girls, what is the ratio of girls to boys?

Back

7 to 5.

Front

What is a part-to-part ratio?

Back

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

Front

What is a part-to-whole ratio?

Back

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

Front

How can you simplify a ratio?

Back

To simplify a ratio, divide both sides of the ratio by their greatest common divisor.