4.3 A Sums of 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, such as 1/2, 1/3, or 1/4.

Front

What is the sum of 1/4 + 1/4?

Back

1/4 + 1/4 = 2/4, which simplifies to 1/2.

Front

How do you add unit fractions with the same denominator?

Back

To add unit fractions with the same denominator, keep the denominator the same and add the numerators. For example, 1/3 + 1/3 = 2/3.

Front

What is the sum of 1/3 + 1/3 + 1/3?

Back

1/3 + 1/3 + 1/3 = 3/3, which simplifies to 1.

Front

Back

This equation shows that adding four unit fractions of 1/6 gives a total of 4/6.

Front

What is the sum of 1/2 + 1/2?

Back

1/2 + 1/2 = 2/2, which simplifies to 1.

Front

How do you find the sum of different unit fractions?

Back

To find the sum of different unit fractions, you need a common denominator. For example, to add 1/4 and 1/2, convert 1/2 to 2/4, then add: 1/4 + 2/4 = 3/4.

Front

What is the sum of 1/5 + 1/5 + 1/5 + 1/5 + 1/5?

Back

1/5 + 1/5 + 1/5 + 1/5 + 1/5 = 5/5, which simplifies to 1.

Front

What is a fraction strip?

Back

A fraction strip is a visual representation of fractions, often used to compare and add fractions.

Front

What is the sum of 1/8 + 1/8 + 1/8 + 1/8?

Back

1/8 + 1/8 + 1/8 + 1/8 = 4/8, which simplifies to 1/2.