a) - 5/2 - 2 + -7/6 =
b) 4-3 3/4 =
c) - 3/8 +2 =
d) 4/7 - 1 + 7/9 =
e) 1/2 + 3 =
Soluções para a tarefa
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a)
- 5 - 2 - 7 = - 15 - 12 - 7 = - 34 (:2) = - 17
2 6 6 6 (:2) 3
mmc de 2 e 6: 6
2,6: 2
1,3: 3
1,1 = 2.3 = 6
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c)
- 3 + 2 = - 3 + 16 = 13
8 8 8
mmc de 8: 8
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e)
1 + 3 = 1 + 6 = 7
2 2 2
mmc de 2: 2
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b)
4 - 3 3 = 4 - 12 + 3 = 4 - 15 = 16 - 15 = 1
4 4 4 4 4
mmc de 4: 4
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d)
4 - 1 + 7 = 36 - 63 + 49 = 22
7 9 63 63
- 5 - 2 - 7 = - 15 - 12 - 7 = - 34 (:2) = - 17
2 6 6 6 (:2) 3
mmc de 2 e 6: 6
2,6: 2
1,3: 3
1,1 = 2.3 = 6
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c)
- 3 + 2 = - 3 + 16 = 13
8 8 8
mmc de 8: 8
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e)
1 + 3 = 1 + 6 = 7
2 2 2
mmc de 2: 2
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b)
4 - 3 3 = 4 - 12 + 3 = 4 - 15 = 16 - 15 = 1
4 4 4 4 4
mmc de 4: 4
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d)
4 - 1 + 7 = 36 - 63 + 49 = 22
7 9 63 63
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