Ratio, ratio tables, & equivalent ratios practice

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 as a fraction?

Back

To write a ratio as a fraction, place the first quantity over the second quantity. For example, the ratio of 4 to 5 is written as 4/5.

Front

What does it mean for two ratios to be equivalent?

Back

Two ratios are equivalent if they represent the same relationship between quantities, meaning they simplify to the same fraction.

Front

How can you find equivalent ratios?

Back

You can find equivalent ratios by multiplying or dividing both terms of the ratio by the same non-zero number.

Front

What is the simplest form of a ratio?

Back

The simplest form of a ratio is when the two quantities are expressed in their lowest terms, meaning they have no common factors other than 1.

Front

How do you simplify the ratio 15:60?

Back

To simplify 15:60, divide both numbers by their greatest common divisor, which is 15. This gives you 1:4.

Front

What is a part-to-part ratio?

Back

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

Front

What is a part-to-whole ratio?

Back

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

Front

If there are 15 boys and 12 girls in a class, what is the ratio of girls to boys?

Back

The ratio of girls to boys is 12:15, which simplifies to 4:5.

Front

What is the missing number in the ratio 4:5 = ? : 10?

Back

The missing number is 8, because 4/5 = 8/10.