Math Practice 101
Homework Explained - Math Practice 101

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Grade 7 McGraw Hill Glencoe - Answer Keys
Chapter 4: Rational Numbers; Lesson 5: Add and Subtract Mixed Numbers


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Extra Practice

Add or subtract. Write in simplest form.

Justify Conclusions Choose an operation to solve. Explain your reasoning. Then solve the problem. Write your answer in simplest form.

  • Question 26 (request help)

    The length of Alana's hair was \(9\frac{3}{4}\) inches. After her haircut, the length was \(6\frac{1}{2}\) inches. How many inches did she have cu t?
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  • Question 27 (request help)

    Emeril used a total of \(7\frac{1}{4}\) cups of flour to make three pastries. He used \(2\frac{1}{4}\) cups of flour for the first and \(2\frac{1}{3}\) cups for the second. How much flour did Emeril use for the third pastry?
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  • Question 28 (request help)

    Margarite made the jewelry shown. If the necklace is \(10\frac{5}{8}\) inches longer than the bracelet, how long is the necklace?

     
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  • Question 29 (request help)

    Find the perimeter of the figure. Write your answer in simplest form.
  • Question 30 (request help)

    Suppose you want to place a shelf that is \(30\frac{1}{3}\) inches long in the center of a wall that is \(45\frac{3}{4}\) inches wide. About how far from each edge of the wall should you place the shelf?
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