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Add same denominators: 4th grade math

Add/subtract like denominators, including mixed numbers. A free 4th grade lesson plan, a question set with answers and a printable sheet with its key. Copy it and make it yours.

Lesson plan

Goal

  • Students can do this: add/subtract like denominators, including mixed numbers.

Teach (10 min)

  • When the bottoms match, the pieces are the same size, so just add or take away the tops.
  • The bottom stays the same.
  • Work one example on the board while students say each step aloud, then do one together.

Practise (15 min)

  • Students work the printable sheet in pairs, then alone.
  • Or practise it as a game with no sign-up: https://peabody.kids/math/fractions.addLike?lesson=4-add-fractions&at=4

Exit ticket (5 min)

  • Three questions on a slip:
  • 1. Work it out.
  • 2. Work it out.
  • 3. Work it out.

Question set

10 questions that read in words, easiest first. Questions that need a picture are on the printable sheet below.

  1. Work it out.
  2. Work it out.
  3. Work it out.
  4. Work it out.
  5. Work it out.
  6. Work it out.
  7. Work it out.
  8. Work it out.
  9. Work it out.
  10. Work it out.
Answers
  1. 1/4
  2. 7/6
  3. 7/6
  4. 1
  5. 3/5
  6. 1/4
  7. 4/5
  8. 1/8
  9. 6/5
  10. 1

Printable sheet

Name: ____________________   Date: ____________

Add same denominators (4th grade)

  1. Work it out.
  2. Work it out.
  3. Work it out.
  4. Work it out.
  5. Work it out.
  6. Work it out.
  7. Work it out.
  8. Work it out.
  9. Work it out.
  10. Work it out.
  11. Work it out.
  12. Work it out.
Key
  1. 1
  2. 58
  3. 1
  4. 14
  5. 1
  6. 14
  7. 32
  8. 1
  9. 43
  10. 54
  11. 56
  12. 512

Written by Peabody from its own skill pages. Free, no ads, no sign-in. Children can practise this on Peabody. More from teachers: teacher-shared resources.