Question

Transcrieti in fractie ordinara ireductibila urmatoarele fractii zecimale:
2,4
-1,25
-0,3
2,125
-0,02
-2,(3)
1,2(7)
-2,0(6)
0,(36)
-1,(63)
156(3)

Answer 1

○ 2,4 = 24/10 = 12/5 ○ -1,25 = -(125/100) = - 5/4 ○ -0,3 = -3/10 ○ 2,125 = 2125/1000 = 17/8 ○ -0,02 = -2/100 = -1/50 ○ -2,(3) = -(23-2)/9 = -21/9 = -7/3 ○ 1,2(7) = (127-12)/90 = 115/90 = 23/18 ○ -2,0(6) = -(206-20)/90 = -186/90 = -31/15 ○ 0,(36) = 36/99 = 4/11 ○ -1,(63) = -(163-1)/99 = -162/99 = -18/11 ○ 156,(3) = (1563-156)/9 = 1407/9 = 469/3