Fractions Third Worksheet
This fractions third worksheet helps 3rd graders find one third and two thirds of a group using dot arrays and word problems. An answer key is included so checking work is quick and easy.
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About this resource
Description
A fraction can name part of a whole shape, but it can also name part of a group. When we split a group into three equal parts, each part is one third of the group. This fractions third worksheet helps 3rd graders find one third and two thirds of a set of objects, first with dot pictures and then in real-world word problems.
About This Worksheet
In the first section, students split each dot array into three equal parts, circle one part, and write how many dots they circled, such as 1/3 of 12 = 4. In the second section, they circle two equal parts to find two thirds of a set, such as 2/3 of 18 = 12. The final section of this fractions third worksheet has two word problems about crayons and a school bus, so students apply the same thinking without a picture. It works well as a 3rd grade fractions worksheet for math centers, small groups, homework, or a quick check after a lesson on unit fractions.
What’s Included
- Three find-one-third dot arrays
- Three find-two-thirds dot arrays
- Two fraction-of-a-group word problems
- A full answer key
Why This Worksheet Helps Kids
First, the dot arrays make equal parts visible, so students see why one third of 21 is 7. Second, finding two thirds builds the idea that 2/3 is two of the 1/3 parts. Third, the word problems connect fractions to division and to everyday situations students recognize.
Ideas for Teachers and Parents
Hand out counters and have students sort them into three equal piles before starting the page. Ask children to explain how they knew each part was equal. After the worksheet, challenge students to find one third of their own group, such as a handful of crackers or a set of toy cars. At home, look for groups of objects in the kitchen and ask what one third or two thirds of each group would be.
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