4.3A Unit Fractions

Front

What is a unit fraction?

Back

A unit fraction is a fraction where the numerator is 1 and the denominator is a positive integer. For example, 1/2, 1/3, and 1/4 are unit fractions.

Front

How do you represent a unit fraction visually?

Back

A unit fraction can be represented visually by dividing a whole into equal parts. For example, 1/4 can be shown as one part of a circle divided into four equal sections.

Front

What is the sum of two unit fractions, 1/4 and 1/4?

Back

The sum of 1/4 and 1/4 is 2/4, which simplifies to 1/2.

Front

If you have 1/3 of a pizza and you eat 1/3 of that, how much pizza do you have left?

Back

If you eat 1/3 of 1/3 of a pizza, you eat 1/9 of the whole pizza. You have 1/3 - 1/9 = 2/9 of the pizza left.

Front

What is the relationship between unit fractions and whole numbers?

Back

Unit fractions are parts of a whole number. When you add unit fractions together, you can form whole numbers or other fractions.

Front

Can you give an example of adding two different unit fractions?

Back

Sure! Adding 1/4 and 1/2: 1/4 + 1/2 = 1/4 + 2/4 = 3/4.

Front

What is the difference between a unit fraction and a proper fraction?

Back

A unit fraction has a numerator of 1, while a proper fraction has a numerator that is less than the denominator, such as 2/3.

Front

How can you find a common denominator for unit fractions?

Back

To find a common denominator, identify the least common multiple (LCM) of the denominators. For example, for 1/3 and 1/4, the LCM is 12.

Front

What is the product of a unit fraction and a whole number?

Back

The product of a unit fraction and a whole number is found by multiplying the numerator by the whole number. For example, 1/5 x 3 = 3/5.

Front

How do you compare two unit fractions?

Back

To compare two unit fractions, look at their denominators. The smaller the denominator, the larger the unit fraction. For example, 1/3 is greater than 1/4.