Question

Calcule o valor das expressões abaixo:
a) 4/5-1/2
b)3/5+1/2+3/4
c)3-7/4+2/5
d)3/10.7/12
e)5/3:2/8
f)3/4-1/5.1/2
g)(1/5+1/4).(1+1/8)

Gente e urgente por favor

Answer 1

a)4/5-1/2
8/10-5/10
3/10

b)3/5+1/2+3/4
12/20+10/20+15/20
37/20

c)3-7/4+2/5
-4/4+2/5
-1+2/5
-5/5+2/5
-3/5

d)3/10.7/12
36/70

e)5/3÷2/8
40/6=20/3

f)3/4-1/5.1/2
3/4-1/10
30/40-4/40
26/40=13/20

g)(1/5+1/4).(1+1/8)
(4/20+5/20).(9/8)
9/20.9/8
81/160