# Adding and Subtracting Fractions (Unlike Denominators) Complete Lesson

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Common Core Standards
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A complete CCSS aligned lesson that covers 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.)

This lesson includes:

• A PowerPoint Presentation with a starter, explanation, modelling opportunities and a plenary.
• Differentiated worksheets (Low Risk, Medium Risk and High Risk) with answers and an additional problem solving Challenge worksheet.
• An easy to use illustrated lesson plan to use in conjunction with the PowerPoint Presentation.

This effective and differentiated lesson is intended to be both an easy to prepare and follow lesson that is ready to be used.

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