Resolva e simplifique a- 1/4 +3/5 b-2/8÷2/8 c-4/6.2/3 d- (-2/3)+2/4.... Pergunta de ideia deDiellesilveira

December 2019 1 69 Report

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

Diellesilveira Obg....

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De o valor absoluto a- (-5/4) b- (3/4) c- (2/9) d- (-2/9 )

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