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Regrouping Mixed #s

Regrouping Mixed #s. Lesson 23. Math Vocabulary. REGROUP In SUBTRACTION … we “regroup” a mixed number by “borrowing” from the whole number to make a fraction bigger. Regrouping. Example: 15 ¾  14 3 + 4 14 7/4. Steps: Go down a whole #

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Regrouping Mixed #s

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  1. Regrouping Mixed #s Lesson 23

  2. Math Vocabulary REGROUP In SUBTRACTION… we “regroup” a mixed number by “borrowing” from the whole number to make a fraction bigger

  3. Regrouping Example: 15 ¾  14 3 + 4 14 7/4 Steps: • Go down a whole # • Numerator + Denominator (top + bottom) = NEW numerator (top) • Put together and keep same denominator (bottom)

  4. Regrouping Example: 8 1/5  7 1 + 5 7 6/5 Steps: • Down a whole # • (top + bottom) = NEW numerator (top) • Put together with same denominator (bottom)

  5. More Examples • 7 1/3 ----- • 9 5/8 ----- • 13 9/11-----

  6. Practice • 16 2/7 ----- • 10 4/9 ----- • 1 3/5 -----

  7. Regrouping to Subtract Example problem: Steps: • Rewrite/stack problem – if needed • Check if top fraction can subtract bottom fraction • Regroup (borrow) if needed • Subtract: whole # -whole # fraction – fraction 5. Reduce (for bonus point)

  8. Regrouping to Subtract Practice:

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