Question

2.Escreva estas fraçoes na forma percentual.

a) 1/2 = e)9/10=

b)3/4= f)7/20=

c)3/5= g)1/25=

d)1/5= h)6/25=

Answer 1

Utilize a regra de 3

a)
1 = x
2 = 100%

2x = 1*100
x = 100/2
x = 50

a = 50%
b = 75%
c = 60%
d = 20%
e = 90%
f = 35%
g = 4%
h = 24%

Answer 2

Olá,

Vamos lá,

a)1/2
= (1:2)* 100
= 0,5*100
= 50%

b) 3/4
= (3:4)*100
= 0,75*100
= 75%

c) 3/5
= (3:5)*100
= 0,6*100
= 60%

d) 1/5
= (1:5)*100
= 0,2*100
= 20%

e)9/10
= (9:10)*100
= 0,9*100
= 90%

f)7/20
= ( 7:20)*100
= 0,35*100
= 35%

g)1/25
=(1:25)*100
=0,04*100
= 4%

h)6:25
= (6:25)*100
= 0,24*100
= 24%