Question

represente os decimais abaixo na forma fracionaria irredutivel

a) 3,428

b)3,44444...

c)0,52323232323...

d)2,125

Answer 1

a) 3,428

3428 / 1000 (÷4)
857 / 250




b)3,44444...

x = 3 + 4/9 (×9)
9x = 27 + 4
9x = 31
x = 31 / 9




c)0,52323232323...

x = 0,52323... (×10
10x = 5 + 23/99 (×99
990x = 495 + 23
x = 518 / 990 (÷2)
x = 259 / 495



d)2,125

2125 / 1000 (÷5)
425 / 200 (÷5)
85 / 40
17 / 8