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Bom dia
a)
5/6 - 1/4 + 2/3 mmc = 12
10/12 - 3/12 + 8/12 = 15/12 = 5/4
b)
3/5 + 1/2 - 2/4
3/5 + 1/2 - 1/2 = 3/5
c)
4/5 + 3/4 - 1/2 mmc = 20
16/20 + 15/20 - 10/20 = 21/20
d)
8 + 1/3 + 3/4 mmc = 12
96/12 + 4/12 + 9/12 = 109/12
e)
1 3/4 - 2/3 + 4/5
7/4 - 2/3 + 4/5 mmc = 60
105/60 - 40/60 + 48/60 = 113/60
f)
5 - 1/2 + 1 1/3
5 - 1/2 + 4/3 mmc = 6
30/6 - 3/6 + 8/6 = 35/6
a)
5/6 - 1/4 + 2/3 mmc = 12
10/12 - 3/12 + 8/12 = 15/12 = 5/4
b)
3/5 + 1/2 - 2/4
3/5 + 1/2 - 1/2 = 3/5
c)
4/5 + 3/4 - 1/2 mmc = 20
16/20 + 15/20 - 10/20 = 21/20
d)
8 + 1/3 + 3/4 mmc = 12
96/12 + 4/12 + 9/12 = 109/12
e)
1 3/4 - 2/3 + 4/5
7/4 - 2/3 + 4/5 mmc = 60
105/60 - 40/60 + 48/60 = 113/60
f)
5 - 1/2 + 1 1/3
5 - 1/2 + 4/3 mmc = 6
30/6 - 3/6 + 8/6 = 35/6
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