Respostas

2014-02-18T12:51:10-03:00
São dízimas? 

A) 3,444= 3444/1000 = 861/250 
ou 

3,444...= 3 + 4/9= 31/9= 3 4/9 


B) -12,555 = -12555/1000 =- 2511/200 


C)0,454545= 45/1000000= 9/200000 
ou/ 

0,454545...=45/99 = 5/11