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Adding and Subtracting Fractions PowerPoint

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A 17 slide editable PowerPoint Template to use when teaching your students how to add and subtract fractions.

This PowerPoint presentation has been designed to teach your students, step by step, how to add and subtract like and unlike fractions. It covers the following content:

  • Revision of what fractions are; and what each part of a fraction represents.
  • A clear explanation of how to add and subtract like fractions, including annotated examples.
  • A clear explanation of how to add and subtract unlike fractions, including annotated examples.
  • Review questions for students, with answers.

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Common Core State Standards alignment

Grade 4 > Standards for Mathematical Practice > Number & Operations - Fractions > Build fractions from unit fractions > CCSS.MATH.CONTENT.4.NF.B.3 > CCSS.MATH.CONTENT.4.NF.B.3.A
Understand addition and subtraction of fractions as joining and separating parts referring to the same whole.

Grade 4 > Standards for Mathematical Practice > Number & Operations - Fractions > Build fractions from unit fractions > CCSS.MATH.CONTENT.4.NF.B.3 > CCSS.MATH.CONTENT.4.NF.B.3.C
Add and subtract mixed numbers with like denominators, e.g., by replacing each mixed number with an equivalent fraction, and/or by using properties of operations and the relationship between addition and subtraction.

Grade 4 > Standards for Mathematical Practice > Number & Operations - Fractions > Build fractions from unit fractions > CCSS.MATH.CONTENT.4.NF.B.3 > CCSS.MATH.CONTENT.4.NF.B.3.D
Solve word problems involving addition and subtraction of fractions referring to the same whole and having like denominators, e.g., by using visual fraction models and equations to represent the problem.

Grade 5 > Standards for Mathematical Practice > Number & Operations - Fractions > Use equivalent fractions as a strategy to add and subtract fractions > CCSS.MATH.CONTENT.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.)

Grade 5 > Standards for Mathematical Practice > Number & Operations - Fractions > Use equivalent fractions as a strategy to add and subtract fractions > CCSS.MATH.CONTENT.5.NF.A.2
Solve word problems involving addition and subtraction of fractions referring to the same whole, including cases of unlike denominators, e.g., by using visual fraction models or equations to represent the problem. Use benchmark fractions and number sense of fractions to estimate mentally and assess the reasonableness of answers. For example, recognize an incorrect result 2/5 + 1/2 = 3/7, by observing that 3/7 < 1/2.


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Comments & Reviews

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  • How can I download this file so that the fractions do not change font or font size?

    Comment by Kerry Balzo on February 24, 2018 at 9:53 am


    • Hi Kerry, I’m happy to help. Can you please send a screenshot of the issue to [email protected]? We will then be able to look in to a solution for you.

      Official comment by Scott (Teach Starter) on March 1, 2018 at 3:48 pm


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Resource Updates

  • Slide 14 fraction simplified to it's lowest form.

    Change by Alison Smith Monday May 7

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