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Diellesilveira
@Diellesilveira
December 2019
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Resolva e simplifique
a- 1/4 +3/5
b-2/8÷2/8
c-4/6.2/3
d- (-2/3)+2/4
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Comentários (1)
A)
1/4 + 3/5
MMM de 4 e 5 = 20
= (5(1) + 4(3))/20
= ( 5+12)/20
= 17/20
b)
-2/8 : 2/8
= -2.8/2.8
= -16/16
= -1
c)
4/6.2/3
= 4.2/6.3
= 8/18
= 4/9
d)
-2/3 + 2/4
MMC = 12
= (4(-2) + 3(2))/12
= (-8+6)/12
= -2/12
= -1/6
1 votes
Thanks 1
Diellesilveira
Obg....
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1/4 + 3/5
MMM de 4 e 5 = 20
= (5(1) + 4(3))/20
= ( 5+12)/20
= 17/20
b)
-2/8 : 2/8
= -2.8/2.8
= -16/16
= -1
c)
4/6.2/3
= 4.2/6.3
= 8/18
= 4/9
d)
-2/3 + 2/4
MMC = 12
= (4(-2) + 3(2))/12
= (-8+6)/12
= -2/12
= -1/6