Question

Relacione as frações e porcentagens.
A – 50% B – 40% C – 20% D – 70% E – 25% F – 75%
( ) 1  ( ) 3 ( ) 7   ( ) 4    ( ) 1  ( ) 1
    5       4     10      10      2      4

Answer 1

50% = 1/2
40% = 4/10
20% = 1/5
70% = 7/10
25% = 1/4
75% = 3/4

Answer 2

Faz regra de três
100%  --- 1
50% ---- x 
 100x=50
  x=50/100
   x=5/10
   x=1/2

100%---1
40%---x
100x=40
x=40/100
x=4/10
x=2/5

20% = 1/5
70%= 7/10
25%= 1/4
75%= 3/4