5.12 Übungen Frommenwiler (Rechnen mit rationalen Zahlen)
5.12 Übungen Frommenwiler (Rechnen mit rationalen Zahlen)
5.12 Übungen Frommenwiler (Rechnen mit rationalen Zahlen)
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wz uri Rationale <strong>Zahlen</strong><br />
5 Rationale <strong>Zahlen</strong><br />
<strong>5.12</strong><br />
<strong>Übungen</strong> <strong>Frommenwiler</strong><br />
3<br />
55. b) 12 m 8 n<br />
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4 4<br />
d)<br />
56. a)<br />
1<br />
1<br />
2<br />
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2<br />
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2<br />
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e) 8 m<br />
4<br />
b)<br />
d)<br />
1<br />
2<br />
m<br />
1<br />
57. a) a b<br />
b)<br />
2<br />
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2<br />
4<br />
2<br />
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2 2<br />
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2<br />
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1<br />
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2<br />
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1<br />
3<br />
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x x<br />
7 7 7<br />
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a a<br />
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3 <br />
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ab ab<br />
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2<br />
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1 von 7
wz uri Rationale <strong>Zahlen</strong><br />
c)<br />
d)<br />
58. a)<br />
b)<br />
c)<br />
2 2 2<br />
a 1 a a 1 a 1 1<br />
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a a 1 a a 1 a a 1 a a 1 a a 1<br />
2<br />
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2<br />
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2<br />
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1<br />
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1<br />
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2 2 2<br />
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x y<br />
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1<br />
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2 2<br />
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b aba <br />
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2 2 2<br />
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2 2<br />
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1<br />
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1<br />
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2 2 2 2 2 2 2<br />
a b b a b a b a b<br />
a 1<br />
2<br />
a a1 a<br />
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1aa1 2 1 1 1 3. Binom<br />
2 2<br />
3. Binom angewendet<br />
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a a1 a 1 a a 1 a<br />
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aa1 <br />
2<br />
2<br />
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2a 1<br />
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2 2<br />
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1<br />
1<br />
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2 2 2<br />
a b b<br />
2 von 7
wz uri Rationale <strong>Zahlen</strong><br />
d)<br />
e)<br />
59. a)<br />
b)<br />
c)<br />
1<br />
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x1 1<br />
1 x<br />
2<br />
1<br />
1<br />
x1x1 1 x 1 x<br />
Binom<br />
1<br />
2 x 1x1 1x1xx1 1<br />
1<br />
2 2<br />
1x <br />
2<br />
1<br />
x1 <br />
2<br />
x x<br />
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2 2<br />
1 x x 1<br />
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1 x<br />
x 1 x 1<br />
2<br />
1x x1 2<br />
x 3x 2<br />
2<br />
x x<br />
2<br />
x x 2x2 x 11 <br />
1<br />
x<br />
1x <br />
1x 2 x 3x2 2<br />
2 2<br />
x 1x2 x 1x222x1 22x2 <br />
3<br />
x x 2x2 1<br />
x<br />
4<br />
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3<br />
2<br />
x x 2<br />
4 <br />
4 1 x<br />
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3 3 3 3<br />
x x x<br />
x<br />
3<br />
3 3<br />
3<br />
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4 x1 4 1 1 x<br />
2<br />
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3 10 5<br />
4<br />
15<br />
12 6<br />
5 <br />
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2<br />
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x y xy<br />
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3<br />
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d) a 1 a<br />
2<br />
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e)<br />
3<br />
Minuszeichen kann in den Term x1gebracht werden<br />
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2n<br />
3<br />
n2 2<br />
n2 2n 4n 2n n<br />
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n <br />
2 3 3<br />
2<br />
1<br />
2<br />
x 2 x x 2 x<br />
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x 2x2 <br />
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3 von 7
wz uri Rationale <strong>Zahlen</strong><br />
60<br />
f)<br />
a)<br />
a<br />
x<br />
x<br />
3<br />
ax<br />
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b 3<br />
x<br />
b<br />
3<br />
x<br />
2<br />
3 1<br />
12<br />
4 3<br />
9 4 5<br />
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111 6 437 12<br />
234 <br />
1<br />
1a a a 1<br />
b)<br />
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2<br />
1 a 1<br />
aa a <br />
1 1<br />
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c)<br />
m n<br />
n m1nm1 <br />
m n mn<br />
m nmn1mn e)<br />
61. d)<br />
ac <br />
bd<br />
bd <br />
ac ac<br />
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aab ad a bb ad ab b<br />
bd<br />
bd 1<br />
3<br />
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f)<br />
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1 1 <br />
x<br />
2 3 <br />
x x <br />
3<br />
x x<br />
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x1 3 2<br />
a 1ab<br />
b 1<br />
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b 1<br />
a ab<br />
b ab<br />
1<br />
2<br />
a ab a a b<br />
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2<br />
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b b a<br />
a<br />
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b<br />
1<br />
1<br />
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2<br />
4 von 7
wz uri Rationale <strong>Zahlen</strong><br />
e)<br />
f)<br />
62 a)<br />
b)<br />
c)<br />
d)<br />
4 4 1 <br />
aab b <br />
<br />
2ab<br />
a2b 2 2<br />
2a b<br />
2 2 <br />
2 2<br />
1 1 2 2 2ab a b<br />
Binom<br />
2<br />
2<br />
<br />
b a<br />
2 2<br />
8b 8ab 2a<br />
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2<br />
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ab 2b a<br />
2 4b 4ab a 2 2b a<br />
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ab 2<br />
1 <br />
1a1<br />
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a<br />
a a <br />
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a 1<br />
1<br />
1<br />
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1 <br />
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2<br />
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a <br />
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1a <br />
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1 1 a 1 a<br />
1<br />
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x y<br />
y<br />
x y <br />
x xy 2 2<br />
a a 1 a a 1 a 1 a 1<br />
2<br />
2 2<br />
1 a1 a<br />
1 a<br />
1 a a a aa 1<br />
xy xy yxy<br />
xy x yyxyxyy <br />
x x <br />
x x yxy yxy<br />
yxy <br />
y<br />
1 y x y x y 1<br />
<br />
2<br />
x<br />
b <br />
b1b1<br />
b1b1 b b b b<br />
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1 1 <br />
b1 <br />
b 1 b 1 b 1 2<br />
2<br />
b1b1<br />
b1b1 5 von 7
wz uri Rationale <strong>Zahlen</strong><br />
e)<br />
f)<br />
63. c)<br />
d)<br />
a b a b <br />
abab a bababab aa b ba b<br />
<br />
1 1 1 1 <br />
a b <br />
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a b<br />
abab<br />
a bba abab 1 1 2 2 2 2<br />
a ab ab b a b<br />
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a b a b 2a<br />
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2<br />
x1 <br />
x 1 x 1 x 1<br />
1x1x <br />
1 x 1<br />
x 1x1x1 <br />
<br />
x 1x1 x 1x1 <br />
1<br />
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x1x 2<br />
x 1x1 x 1 x 1 x11xx1 <br />
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2<br />
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x 1 x 1 1x1xx1 2<br />
x 1x1 x1x11 1 x x 1<br />
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2 2 2 2<br />
x 1 x 1 x 1 x 1<br />
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2 2 2<br />
x 1 1 x 2x1x1x2x1x1x2x1xx3 1 1<br />
2<br />
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u<br />
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2<br />
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2 2 2 2 2<br />
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x<br />
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a <br />
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2 2<br />
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a a <br />
ax a <br />
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a xa x<br />
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1 ax ax ax ax a x x<br />
x<br />
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2 2<br />
ax a ax a 2ax<br />
a 2x<br />
a 2x2xa 1<br />
a <br />
1<br />
<br />
6 von 7
wz uri Rationale <strong>Zahlen</strong><br />
64. a)<br />
b)<br />
c)<br />
<br />
2 <br />
e 3e3 e3<br />
e 5e5 e 5e5 e<br />
2<br />
e 25<br />
e<br />
2e15 <br />
2e<br />
e 5 e<br />
e 3<br />
e3 e3e3 2e<br />
e 5e51e5e5 1<br />
e e 5<br />
e <br />
e 52e e e 5<br />
1<br />
2<br />
a 1<br />
a a<br />
a a 1 a 1 a 1 a 1<br />
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1 1 a 1<br />
1 1 1 1 a<br />
1 1<br />
a 1a 1<br />
1<br />
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a a<br />
1<br />
a 1 a 1 a 1 a 1<br />
a<br />
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a1 1a1a1a1a 1<br />
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1<br />
2<br />
a 1<br />
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1<br />
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1 1<br />
2a <br />
2ba<br />
ab<br />
2a <br />
2b a<br />
ab<br />
2b 3a<br />
2 2<br />
3 9a 4b 3a 2b<br />
2b 3a<br />
3 3a 2b<br />
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3<br />
2b a<br />
ab 2b a 12ab<br />
1<br />
ab<br />
1<br />
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5e <br />
e<br />
2b a2ba ab ab<br />
2b 3a2b3a b4b 2b 3a<br />
2a 2a <br />
2 2<br />
9a 12a<br />
Reihenfolge ändern (einfacher) :<br />
2 2<br />
4b 12ab9a 3 3<br />
2<br />
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7 von 7