Fraction Set and Sum of Units

The top number in a fraction that shows how many parts of a whole

• equal

• fraction bar

• denominator

• numerator

Unit fraction

• breaking a number or fraction into parts; example: 2/5 = 1/5 + 1/5

• a symbol such as 1/2, used to name part of a whole, part of a set, or location on a number line

• the number below the fraction bar in a fraction; it shows how many equal parts

• represents one part of the whole; always has a numerator of 1

a number that names part of a whole or part of a group

• piece

• fraction

• decompose

What fraction of this shape is shaded?

• 1/2

• 1/3

• 1/4

• 1/6

Using unit fractions, choose the addition sentence that shows the area shaded in pink.

• 1/2 + 1/2= 2/2

• 1/4 + 1/4= 2/4

• 1/4 + 1/4= 2/8

• 1/3+ 1/3= 2/3

•  $\frac{1}{2}+\frac{1}{2}+\frac{1}{2}+\frac{1}{2}+\frac{1}{2}$  

What is the sum of unit fractions for this pictorial model?

• 1/2 + 1/2= 2/2

• 1/4 + 1/4= 2/4

• 1/4 + 1/4= 2/8

• 1/3+ 1/3= 2/3

• 1/6 + 1/6 + 1/6 + 1/6 + 1/6

• 2/6 + 3/6

• 1/6 x 5/6

• 6/6 - 1/6

• 3/6 + 1/6 + 2/6

What fraction of the rectangle is blue?

• 1/6

• 2/6

• 6/2

• 2/3