Sum of a Unit Fraction

Decomposing Fractions

Friday October 29

Unit Fractions​

​Unit fractions are small fractions with a numerator of 1 that are used to build larger fractions.

Decomposing Fractions

Decompose means break apart. You can decompose fractions in many ways.

Multiple Choice

Decompose 5/12 into the sum of its unit fractions.

• 1/5+1/5+1/5+1/5+1/5 = 5/12
• 1/12+1/12+1/12+1/12+1/12 = 5/12
• 1/5+1/12+1/5+1/12+1/5 = 5/12
• 4/12+1/12 = 5/12

Multiple Choice

Which of the following show how to decompose 6/12?

• 2/12 + 3/12
• 3/12 + 3/12
• 4/12 + 1/12
• 6/12 + 6/12

Multiple Choice

Which of the following is a unit fraction?

• 2/5

• 5/8

• 1/8

• 7/10

Multiple Choice

What fraction is represented by the sum of 1/6 + 1/6 + 1/6?

• 3/6
• 2/6
• 4/6
• 3/18

Multiple Choice

Decompose the fraction represented with the pizzas

• 1/4 +1/3 +1/3 +1/4
• 1/3 +1/3 +1/4
• 1/3 +1/3 +1/3 +1/3