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Model Addition of Mixed Numbers
In the following exercises, use a model to find the sum. Draw a picture to illustrate your model.
Add Mixed Numbers with a Common Denominator
In the following exercises, add.
Model Subtraction of Mixed Numbers
In the following exercises, use a model to find the difference. Draw a picture to illustrate your model.
Subtract Mixed Numbers with a Common Denominator
In the following exercises, find the difference.
Add and Subtract Mixed Numbers with Different Denominators
In the following exercises, write the sum or difference as a mixed number in simplified form.
Mixed Practice
In the following exercises, perform the indicated operation and write the result as a mixed number in simplified form.
Sewing Renata is sewing matching shirts for her husband and son. According to the patterns she will use, she needs yards of fabric for her husband’s shirt and yards of fabric for her son’s shirt. How much fabric does she need to make both shirts?
Sewing Pauline has yards of fabric to make a jacket. The jacket uses yards. How much fabric will she have left after making the jacket?
Printing Nishant is printing invitations on his computer. The paper is inches wide, and he sets the print area to have a -inch border on each side. How wide is the print area on the sheet of paper?
Framing a picture Tessa bought a picture frame for her son’s graduation picture. The picture is inches wide. The picture frame is inches wide on each side. How wide will the framed picture be?
Draw a diagram and use it to explain how to add
Edgar will have to pay in tolls to drive to the city.
ⓐ Explain how he can make change from a bill before he leaves so that he has the exact amount he needs.
ⓑ How is Edgar’s situation similar to how you subtract
Answers will vary.
Add twice, first by leaving them as mixed numbers and then by rewriting as improper fractions. Which method do you prefer, and why?
Subtract twice, first by leaving them as mixed numbers and then by rewriting as improper fractions. Which method do you prefer, and why?
Answers will vary.
ⓐ After completing the exercises, use this checklist to evaluate your mastery of the objectives of this section.
ⓑ After reviewing this checklist, what will you do to become confident for all objectives?
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