Question

Transforma in numere rationare urmatoarele ordinale: 1,7 ; -2,5 ; 12,312 ; 0,(4) ; 12,(462) ; 2,03 ; -0,6; -23,5436; 2,(23) ; -1,(12); -10,2(4) ; -5,01(2)

Answer 1

○ 1,7 = 17/10

○ -2,5 = -25/10 = -5/2

○ 12,312 = 12312/1000 = 1539/125

○ 0,(4) = 4/9

○ 12,(462) = (12462-12)/999 = 12450/999 = 4150/333

○ 2,03 = 203/100

○ -0,6 = -6/10 = -3/5

○ -23,5436 = -235436/10000 = 58859/2500

○ 2,(23) = (223-2)/99 = 221/99

○ -1,(12) = -(112-1)/99 = -111/99 = -37/33

○ -10,2(4) = -(1024-102)/90 = 922/90 = 461/45

○ -5,01(2) = -(5012-501)/900 = -4511/900