Răspunsuri

2014-06-03T11:09:54+03:00
0,(3)=3/9=1/3
1,4(6)= 1 intreg (46-4)/90= 1 intreg 42/90 = 1 intreg 14/30=1 intreg 7/15= 22/15
0,(45)=45/99= 5/11

(2a- 1/3) : 22/15 =5/11
 (2a-1/3)= 5/11* 22/15
(2a-1/3)= 2/3
6a-1=2
6a=2+1
6a=3
a=3/6=1/2=0,5aducem la acelasi numitor
imi da variante si spune asa: 1,10,1:3,1:2
care e corect