Grade 3 · Math · Fractions

3rd Grade Fractions of a Set worksheets

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Fractions of a Set

Grade 3 Math Worksheet - Building Confidence

NameDate

Write the answer on the line, or circle the answer.

The 12 stars are in 3 equal rows. What is 2/3 of 12 stars?
Share these 20 stars equally into 4 groups. How many stars are in one group?
3.
Lena puts 1 of these 4 rows of leaves in a basket. What fraction of the leaves are in the basket?
- 3/4
- 4/4
- 1/4
Max picks 2 of these 6 pencils, taking whole rows. How many rows does he pick?
There are 3 equal groups of 5 apples. 2 groups are in a box. How many apples are in the box?
The 12 leaves are in 3 equal rows. What is 1/3 of 12 leaves?
Share these 6 apples equally into 2 groups. How many apples are in one group?
8.
Lena puts 1 of these 3 rows of stars in a basket. What fraction of the stars are in the basket?
- 3/3
- 1/3
- 1/9
Max picks 8 of these 16 stars, taking whole rows. How many rows does he pick?
There are 4 equal groups of 5 leaves. 3 groups are in a box. How many leaves are in the box?

3rd Grade Fractions of a Set worksheet 1 – printable PDF — Download PDF: 1 2 3 4 5 6

About this worksheet

Fractions of a set ask students to apply fraction language to groups of objects rather than only to parts of one shape. Third graders may know that one fourth means one out of four equal parts, but they may count one object instead of one equal group when a set has many objects. This worksheet uses object sets drawn in equal rows, so each row is one equal group. Students find how many objects are in a fraction of the set, name the fraction of the groups that are picked, count the groups a number of objects fills, and solve short story problems.

Support versions use halves, thirds and fourths with small sets. Standard versions add sixths and eighths. Challenge versions use larger sets, fractions such as five sixths or three eighths, and two-step stories that ask how many are left. Encourage your child to split the set into equal groups first, then count the groups named by the numerator.

What your child will learn

Interpret fractions of object sets
Use numerator and denominator language
Split a set into equal groups
Count the objects named by a fraction

Common Core standard: 3.NF.A.1

Worked example

One fourth of 20 objects is 5 objects because 20 split into 4 equal groups gives 5 in each group.

Common mistake

Counting the numerator as objects before making equal groups.

Helpful hint

Make equal groups first, then count the selected groups.

Next skill: Area and Perimeter Earlier: Division Facts

Questions parents ask

What is the most common mistake with fractions of a set?

Counting the numerator as objects before making equal groups.

How can I help my child with fractions of a set?

Make equal groups first, then count the selected groups.

Are these 3rd grade math worksheets free to print?

Yes. All 6 printable versions on this page are free to download and print, with no account needed.

More 3rd grade fractions

See all fractions

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