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MSM6

MSM6. Lesson 5-9 Renamin g to Subtract Mixed Numbers. Vocabulary. Renaming or equivalent fractions – Changing a fraction or a mixed number into an equivalent fraction, mixed number with an improper fraction, or improper fraction. Regrouping (Borrowing) to complete a fraction subtraction.

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MSM6

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  1. MSM6 Lesson 5-9 Renaming to Subtract Mixed Numbers

  2. Vocabulary • Renaming or equivalent fractions – Changing a fraction or a mixed number into an equivalent fraction, mixed number with an improper fraction, or improper fraction. • Regrouping (Borrowing) to complete a fraction subtraction. • Mixed Number – A number that contains both a whole number greater than 0 and a fraction. • Equivalent Fractions – Fractions that name the same amount or part. • Unlike Fractions – Fractions with different denominators.

  3. Subtracting fractions with regrouping To subtract fractions that require regrouping, there are four steps you must follow: • Rename with common denominators • Regroup the first fraction • Subtract the whole numbers and numerators • Simplify (if necessary)

  4. Skills – Renaming Mixed Numbers • Rename as • Subtract the whole numbers and the fractions. • Write the answer in simplest form.

  5. Skills – Word Problem Application • Dave is recovering an old couch and cushions. He determines that he needs 17 yards of fabric for the job. If Dave uses yards of fabric to cover the couch frame, how many more yards does he need? • Write 17 as a mixed number with the fraction’s denominator of 6. Rename 17 as: • Subtract the whole numbers and the fractions. • Simplify if necessary

  6. Homework • (L5-9) Renaming to Subtract Mixed Numbers, pp. 252 – 255 • Homework - Online Quia Other Quizzes, MSM6 Lesson 5-9, Renaming to Subtract Mixed Numbers, problems 1-4. • OR • Homework – Textbook, Practice and Problem Solving, p. 254, problems 16, 20, 24, and 28.

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