1) Resolva
A) 9/8 - 4/6 =
B) 7/2 + 2/5 - 2/4 =
C) 9/6 + 5/3 - 6/8 =
D) 9/4 + 5/6 + 8/3 =
E) 7/8 + 8/3 + 5/6 =
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Olá, boa noite ☺
Resoluções:
a)
9/8 - 4/6
m.m.c.(6,8)=24
(27-16)/24=11/24
b)
7/2 + 2/5 - 2/4
m.m.c.(2,4,5)=20
(70+8-10)/20=68/20 : 4/4 = 17/5
c)
9/6 + 5/3 - 6/8
m.m.c.(3,6,8)=24
(36+40-18)/24=58/24 : 2/2=29/12
d)
9/4 + 5/6 + 8/3
m.m.c.(3,4,5)=60
(135+50+160)/60=345/60 : 15/15 = 23/4
e)
7/8 + 8/3 + 5/6
m.m.c.(3,6,8)=24
(21+64+20)/24=105/24 : 3/3 = 35/8
Bons estudos :)
Resoluções:
a)
9/8 - 4/6
m.m.c.(6,8)=24
(27-16)/24=11/24
b)
7/2 + 2/5 - 2/4
m.m.c.(2,4,5)=20
(70+8-10)/20=68/20 : 4/4 = 17/5
c)
9/6 + 5/3 - 6/8
m.m.c.(3,6,8)=24
(36+40-18)/24=58/24 : 2/2=29/12
d)
9/4 + 5/6 + 8/3
m.m.c.(3,4,5)=60
(135+50+160)/60=345/60 : 15/15 = 23/4
e)
7/8 + 8/3 + 5/6
m.m.c.(3,6,8)=24
(21+64+20)/24=105/24 : 3/3 = 35/8
Bons estudos :)
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