Question

porcentagens de 0,4 b 5 / 25 c 2/5 d 0,38

Answer 1

a)
0,4=4/10=(4.10)/(10.10)=40/100=40%

b)
 5 / 25 =(5.4)/(25.4)=20/100=20%
ou
5/25=1/5=0,2=2/10=20/100=20%

c)
 2/5 =(2.20)/(5.20)=40/100=40%
ou
2/5=0,4=4/10=40/100=40%

d)
 0,38 =38/100=38%