Brüche addieren und subtrahieren

Mathematik · Klasse 6 · mittel

Klasse 6
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Gleicher Nenner: nur die Zähler addieren. Verschiedene Nenner: erst auf den gleichen Nenner bringen.

A Gleiche Nenner

  1. 2/4 + 1/4 = 3/4
  2. 2/6 + 2/6 =
  3. 2/8 + 2/8 =
  4. 2/4 + 1/4 =
  5. 2/4 + 1/4 =
  6. 2/4 + 1/4 =
  7. 2/8 + 3/8 =
  8. 1/4 + 2/4 =

B Verschiedene Nenner

  1. 1/2 + 5/8 = 4/8 + 5/8 = 9/8
  2. 1/2 + 5/8 =
  3. 3/4 + 3/4 =
  4. 1/2 + 3/4 =
  5. 1/4 + 3/6 =
  6. 2/4 + 2/4 =
  7. 1/2 + 1/4 =
  8. 3/4 + 2/4 =

A Gleiche Nenner

  1. 2/4 + 1/4 = 3/4
  2. 2/6 + 2/6 = 4/6 = 2/3
  3. 2/8 + 2/8 = 4/8 = 1/2
  4. 2/4 + 1/4 = 3/4
  5. 2/4 + 1/4 = 3/4
  6. 2/4 + 1/4 = 3/4
  7. 2/8 + 3/8 = 5/8
  8. 1/4 + 2/4 = 3/4

B Verschiedene Nenner

  1. 1/2 + 5/8 = 4/8 + 5/8 = 9/8
  2. 1/2 + 5/8 = 4/8 + 5/8 = 9/8
  3. 3/4 + 3/4 = 3/4 + 3/4 = 6/4 = 3/2
  4. 1/2 + 3/4 = 2/4 + 3/4 = 5/4
  5. 1/4 + 3/6 = 3/12 + 6/12 = 9/12 = 3/4
  6. 2/4 + 2/4 = 2/4 + 2/4 = 4/4 = 1/1
  7. 1/2 + 1/4 = 2/4 + 1/4 = 3/4
  8. 3/4 + 2/4 = 3/4 + 2/4 = 5/4

Gleicher Nenner: nur die Zähler addieren. Verschiedene Nenner: erst auf den gleichen Nenner bringen.

A Gleiche Nenner

  1. 2/12 + 3/12 = 5/12
  2. 1/12 + 6/12 =
  3. 3/6 + 2/6 =
  4. 7/10 + 1/10 =
  5. 6/8 + 1/8 =
  6. 3/6 + 1/6 =
  7. 2/5 + 2/5 =
  8. 1/6 + 3/6 =

B Verschiedene Nenner

  1. 1/3 + 4/12 = 4/12 + 4/12 = 8/12 = 2/3
  2. 4/6 + 1/12 =
  3. 1/3 + 3/12 =
  4. 1/4 + 4/8 =
  5. 2/6 + 9/12 =
  6. 2/6 + 7/8 =
  7. 2/4 + 1/12 =
  8. 2/3 + 10/12 =

C Subtrahieren

  1. 3/8 - 2/8 = 1/8
  2. 4/8 - 2/8 =
  3. 9/12 - 6/12 =
  4. 3/6 - 2/6 =
  5. 5/8 - 2/8 =
  6. 5/6 - 3/6 =

A Gleiche Nenner

  1. 2/12 + 3/12 = 5/12
  2. 1/12 + 6/12 = 7/12
  3. 3/6 + 2/6 = 5/6
  4. 7/10 + 1/10 = 8/10 = 4/5
  5. 6/8 + 1/8 = 7/8
  6. 3/6 + 1/6 = 4/6 = 2/3
  7. 2/5 + 2/5 = 4/5
  8. 1/6 + 3/6 = 4/6 = 2/3

B Verschiedene Nenner

  1. 1/3 + 4/12 = 4/12 + 4/12 = 8/12 = 2/3
  2. 4/6 + 1/12 = 8/12 + 1/12 = 9/12 = 3/4
  3. 1/3 + 3/12 = 4/12 + 3/12 = 7/12
  4. 1/4 + 4/8 = 2/8 + 4/8 = 6/8 = 3/4
  5. 2/6 + 9/12 = 4/12 + 9/12 = 13/12
  6. 2/6 + 7/8 = 8/24 + 21/24 = 29/24
  7. 2/4 + 1/12 = 6/12 + 1/12 = 7/12
  8. 2/3 + 10/12 = 8/12 + 10/12 = 18/12 = 3/2

C Subtrahieren

  1. 3/8 - 2/8 = 1/8
  2. 4/8 - 2/8 = 2/8 = 1/4
  3. 9/12 - 6/12 = 3/12 = 1/4
  4. 3/6 - 2/6 = 1/6
  5. 5/8 - 2/8 = 3/8
  6. 5/6 - 3/6 = 2/6 = 1/3

Gleicher Nenner: nur die Zähler addieren. Verschiedene Nenner: erst auf den gleichen Nenner bringen.

A Gleiche Nenner

  1. 2/9 + 3/9 = 5/9
  2. 5/7 + 1/7 =
  3. 2/15 + 3/15 =
  4. 2/7 + 4/7 =
  5. 5/9 + 3/9 =
  6. 4/9 + 4/9 =
  7. 4/12 + 6/12 =
  8. 3/12 + 2/12 =

B Verschiedene Nenner

  1. 8/9 + 9/15 = 40/45 + 27/45 = 67/45
  2. 2/4 + 9/10 =
  3. 3/9 + 6/15 =
  4. 3/9 + 3/12 =
  5. 7/9 + 1/6 =
  6. 4/6 + 2/15 =
  7. 2/4 + 2/12 =
  8. 1/6 + 3/10 =

C Subtrahieren

  1. 3/6 - 2/6 = 1/6
  2. 4/12 - 3/12 =
  3. 3/6 - 2/6 =
  4. 6/8 - 5/8 =
  5. 5/8 - 4/8 =
  6. 3/6 - 2/6 =

A Gleiche Nenner

  1. 2/9 + 3/9 = 5/9
  2. 5/7 + 1/7 = 6/7
  3. 2/15 + 3/15 = 5/15 = 1/3
  4. 2/7 + 4/7 = 6/7
  5. 5/9 + 3/9 = 8/9
  6. 4/9 + 4/9 = 8/9
  7. 4/12 + 6/12 = 10/12 = 5/6
  8. 3/12 + 2/12 = 5/12

B Verschiedene Nenner

  1. 8/9 + 9/15 = 40/45 + 27/45 = 67/45
  2. 2/4 + 9/10 = 10/20 + 18/20 = 28/20 = 7/5
  3. 3/9 + 6/15 = 15/45 + 18/45 = 33/45 = 11/15
  4. 3/9 + 3/12 = 12/36 + 9/36 = 21/36 = 7/12
  5. 7/9 + 1/6 = 14/18 + 3/18 = 17/18
  6. 4/6 + 2/15 = 20/30 + 4/30 = 24/30 = 4/5
  7. 2/4 + 2/12 = 6/12 + 2/12 = 8/12 = 2/3
  8. 1/6 + 3/10 = 5/30 + 9/30 = 14/30 = 7/15

C Subtrahieren

  1. 3/6 - 2/6 = 1/6
  2. 4/12 - 3/12 = 1/12
  3. 3/6 - 2/6 = 1/6
  4. 6/8 - 5/8 = 1/8
  5. 5/8 - 4/8 = 1/8
  6. 3/6 - 2/6 = 1/6
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