Brüche multiplizieren und dividieren
Mathematik · Klasse 6 · mittel
Klasse 6
Name: Datum:
Speichern
Malnehmen: Zähler mal Zähler, Nenner mal Nenner. Teilen: mit dem Kehrbruch malnehmen.
A Bruch mal Bruch
- 2/8 · 1/6 = 2/48 = 1/24
- 4/5 · 1/4 =
- 1/4 · 3/5 =
- 4/10 · 3/9 =
- 2/3 · 4/10 =
- 3/8 · 3/8 =
- 2/6 · 4/8 =
- 4/9 · 3/9 =
B Bruch mal ganze Zahl
- 4/7 · 6 = 24/7
- 7/13 · 6 =
- 5/9 · 6 =
- 6/7 · 4 =
- 7/10 · 3 =
- 6/9 · 6 =
A Bruch mal Bruch
- 2/8 · 1/6 = 2/48 = 1/24
- 4/5 · 1/4 = 4/20 = 1/5
- 1/4 · 3/5 = 3/20
- 4/10 · 3/9 = 12/90 = 2/15
- 2/3 · 4/10 = 8/30 = 4/15
- 3/8 · 3/8 = 9/64
- 2/6 · 4/8 = 8/48 = 1/6
- 4/9 · 3/9 = 12/81 = 4/27
B Mit ganzer Zahl
- 4/7 · 6 = 24/7
- 7/13 · 6 = 42/13
- 5/9 · 6 = 30/9 = 10/3
- 6/7 · 4 = 24/7
- 7/10 · 3 = 21/10
- 6/9 · 6 = 36/9 = 4/1
Malnehmen: Zähler mal Zähler, Nenner mal Nenner. Teilen: mit dem Kehrbruch malnehmen.
A Bruch mal Bruch
- 3/6 · 3/6 = 9/36 = 1/4
- 3/6 · 3/7 =
- 6/7 · 7/10 =
- 3/6 · 2/6 =
- 2/3 · 3/7 =
- 7/10 · 3/4 =
- 6/8 · 3/4 =
- 4/5 · 3/9 =
B Bruch mal ganze Zahl
- 7/10 · 9 = 63/10
- 1/5 · 4 =
- 7/13 · 7 =
- 7/13 · 4 =
- 7/11 · 8 =
- 1/4 · 8 =
C Dividieren
Mit dem Kehrbruch malnehmen.
- 5/11 : 2/5 = 5/11 · 5/2 = 25/22
- 7/9 : 2/6 =
- 3/6 : 4/7 =
- 5/6 : 2/7 =
- 6/7 : 1/6 =
- 6/11 : 4/8 =
A Bruch mal Bruch
- 3/6 · 3/6 = 9/36 = 1/4
- 3/6 · 3/7 = 9/42 = 3/14
- 6/7 · 7/10 = 42/70 = 3/5
- 3/6 · 2/6 = 6/36 = 1/6
- 2/3 · 3/7 = 6/21 = 2/7
- 7/10 · 3/4 = 21/40
- 6/8 · 3/4 = 18/32 = 9/16
- 4/5 · 3/9 = 12/45 = 4/15
B Mit ganzer Zahl
- 7/10 · 9 = 63/10
- 1/5 · 4 = 4/5
- 7/13 · 7 = 49/13
- 7/13 · 4 = 28/13
- 7/11 · 8 = 56/11
- 1/4 · 8 = 8/4 = 2/1
C Dividieren
- 5/11 : 2/5 = 5/11 · 5/2 = 25/22
- 7/9 : 2/6 = 7/9 · 6/2 = 42/18 = 7/3
- 3/6 : 4/7 = 3/6 · 7/4 = 21/24 = 7/8
- 5/6 : 2/7 = 5/6 · 7/2 = 35/12
- 6/7 : 1/6 = 6/7 · 6/1 = 36/7
- 6/11 : 4/8 = 6/11 · 8/4 = 48/44 = 12/11
Malnehmen: Zähler mal Zähler, Nenner mal Nenner. Teilen: mit dem Kehrbruch malnehmen.
A Bruch mal Bruch
- 1/7 · 8/13 = 8/91
- 2/7 · 8/14 =
- 5/8 · 1/4 =
- 7/13 · 6/7 =
- 8/14 · 1/6 =
- 1/3 · 6/11 =
- 3/6 · 6/9 =
- 7/12 · 8/14 =
B Bruch mal ganze Zahl
- 1/5 · 9 = 9/5
- 4/5 · 2 =
- 1/3 · 9 =
- 3/5 · 2 =
- 1/3 · 5 =
- 6/10 · 3 =
C Dividieren
Mit dem Kehrbruch malnehmen.
- 5/8 : 2/5 = 5/8 · 5/2 = 25/16
- 6/9 : 5/7 =
- 7/9 : 2/6 =
- 4/9 : 3/8 =
- 3/8 : 1/3 =
- 4/10 : 5/10 =
A Bruch mal Bruch
- 1/7 · 8/13 = 8/91
- 2/7 · 8/14 = 16/98 = 8/49
- 5/8 · 1/4 = 5/32
- 7/13 · 6/7 = 42/91 = 6/13
- 8/14 · 1/6 = 8/84 = 2/21
- 1/3 · 6/11 = 6/33 = 2/11
- 3/6 · 6/9 = 18/54 = 1/3
- 7/12 · 8/14 = 56/168 = 1/3
B Mit ganzer Zahl
- 1/5 · 9 = 9/5
- 4/5 · 2 = 8/5
- 1/3 · 9 = 9/3 = 3/1
- 3/5 · 2 = 6/5
- 1/3 · 5 = 5/3
- 6/10 · 3 = 18/10 = 9/5
C Dividieren
- 5/8 : 2/5 = 5/8 · 5/2 = 25/16
- 6/9 : 5/7 = 6/9 · 7/5 = 42/45 = 14/15
- 7/9 : 2/6 = 7/9 · 6/2 = 42/18 = 7/3
- 4/9 : 3/8 = 4/9 · 8/3 = 32/27
- 3/8 : 1/3 = 3/8 · 3/1 = 9/8
- 4/10 : 5/10 = 4/10 · 10/5 = 40/50 = 4/5