Question

escreva sob a forma de fraçao as seguintes dizimas periodicas a) 3,8888... b)-12,555... c) 0,5656 d)0,31222...

Answer 1

a) 3,8888 = 35/9
=> 3 8/9
=> 9 x 3 + 8
=> 27 + 8 = 35
=> 35/9

b) - 12,555 = - 113/9
=> - 12 5/9
=> - 9 x 12 + 5
=> - 108 + 5 = - 113
=> -113/9

c) 0,5656
=> 56/99

d) 0,3122
=>