Adding & Subtracting Fractions Math Worksheets

Students add and subtract fractions with like and unlike denominators, work with mixed numbers and solve word problems. Answer keys accompany each worksheet version.
Grades
Grades 4–5
File type
PDF
Answer key
Included

Updated May 12, 2022

Subject
Math, Fractions
Topic
Fraction addition, Fraction subtraction
Resource types
Worksheets
Answer key
Included
Standards
5.NF.A.1

Product description

From the author

This resource is an Adding and Subtracting Fractions Math Worksheet.

There are 5 different versions, each covering a new topic.

These worksheets are great for a quick assessment, to be placed in a math station or small group intervention.

Answer key included.

In the classroom

Teaching tips & learning objectives

Learning objectives

  • Add and subtract fractions with like denominators, simplifying the result.

  • Find a common denominator to add or subtract fractions with unlike denominators.

  • Translate a word problem into the correct fraction addition or subtraction expression.

Teaching tips

  • Choose a set that matches the skill being taught: like denominators, unlike denominators, mixed numbers or word problems.

  • Ask students to identify the required operation before solving the word problems.

  • Clarify Version 5, items 4 and 5 before assigning: specify one cup of sugar initially and ask what fraction remains; ask what fraction of the class is girls rather than how many girls.

Skills covered

  • Fraction addition/subtraction with like denominators — students add and subtract fractions sharing the same denominator and simplify results.

  • Fraction addition/subtraction with unlike denominators — students find a common denominator before adding or subtracting.

  • Word problem translation — students identify the correct fraction operation from a real-world scenario involving measurements and quantities.

Good to know

Questions teachers ask about this resource

What does the Cube Color line on the answer pages record?

The printed instruction asks teachers to circle the color of the cube into which a problem set was inserted, to make grading easier. The download supplies the problem sets and keys; the line does not indicate that a physical cube is included.

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Curriculum

Standards, concepts & topics

Standards

  • 5.NF.A.1 — Add and subtract fractions with unlike denominators (including mixed numbers) by replacing given fractions with equivalent fractions in such a way as to produce an equivalent sum or difference of fractions with like denominators. For example, 2/3 + 5/4 = 8/12 + 15/12 = 23/12. (In general, a/b + c/d = (ad + bc)/bd.)

Core concepts

  • Adding fractions

  • Subtracting fractions

  • Like and unlike denominators

  • Mixed numbers

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