Ratios & Equivalent Ratio Review

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 write a ratio using a colon?

Back

You write a ratio using a colon by placing the two quantities separated by a colon, for example, 2:5.

Front

What does 'part to part' ratio mean?

Back

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

Front

What does 'part to whole' ratio mean?

Back

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

Front

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

Back

The ratio of boys to girls is 5:7.

Front

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

Back

The ratio of girls to boys is 7:5.

Front

What is an equivalent ratio?

Back

An equivalent ratio is a ratio that expresses the same relationship between two quantities, even if the numbers are different, such as 2:4 and 1:2.

Front

Are the ratios 3:6 and 1:2 equivalent?

Back

Yes, the ratios 3:6 and 1:2 are equivalent because they represent the same relationship.

Front

How can you determine if two ratios are equivalent?

Back

You can determine if two ratios are equivalent by cross-multiplying and checking if the products are equal.

Front

What word is commonly used when writing a ratio?

Back

The word 'to' is commonly used when writing a ratio.