Determine As Diferenças
A)2/5 + 3/10
B)3-5/2+1/4
C)1/2+4/3-5/4
D)3-1/2-2 3/4
Soluções para a tarefa
Respondido por
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a)
2 + 3 = 2.2 + 1.3 = 4 + 3 = 7
5 10 10 10 10
R.: 7/10
mmc (5,10) = 10
5,10: 2
5,5: 5
1,1
****************************************
b)
3 - 5 + 1
2 4
mmc (2,4) = 4
4.3 - 5.2 + 1
4
12 - 10 + 1 = 2 + 1 = 3
4 4 4
R.: 3/4
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c)
1 + 4 - 5
2 3 4
6.1 + 4.4 - 3.5
12
6 + 16 - 15 = 22 - 15 = 7
12 12 12
R.: 7/12
***************************************************
mmc = 12
2,3,4: 2
1,3,2: 2
1,3,1: 3
1,1,1 = 4.3 = 12
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d)
3 - 1 - 2 3
2 4
3 - 1 - 8 + 3
2 4
3 - 1 - 5
2 4
mmc (2,4) = 4
4.3 - 2.1 - 5 = 12 - 2 - 5 = 12 - 7 = 5
4 4 4 4
R.: 5/4
2 + 3 = 2.2 + 1.3 = 4 + 3 = 7
5 10 10 10 10
R.: 7/10
mmc (5,10) = 10
5,10: 2
5,5: 5
1,1
****************************************
b)
3 - 5 + 1
2 4
mmc (2,4) = 4
4.3 - 5.2 + 1
4
12 - 10 + 1 = 2 + 1 = 3
4 4 4
R.: 3/4
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c)
1 + 4 - 5
2 3 4
6.1 + 4.4 - 3.5
12
6 + 16 - 15 = 22 - 15 = 7
12 12 12
R.: 7/12
***************************************************
mmc = 12
2,3,4: 2
1,3,2: 2
1,3,1: 3
1,1,1 = 4.3 = 12
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d)
3 - 1 - 2 3
2 4
3 - 1 - 8 + 3
2 4
3 - 1 - 5
2 4
mmc (2,4) = 4
4.3 - 2.1 - 5 = 12 - 2 - 5 = 12 - 7 = 5
4 4 4 4
R.: 5/4
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