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Plizzz... varog pe mine Urgent...(Transformaea numerelor zecimale periodice simple in fractii) 0,(1) :5,(23) : 12,(6) : 20,(254) : 14,(78) : 25,(66) Dau 29 puncte

Răspuns :

0,1=1 pe 9
5.23=5intreg 23pe99
12.6=12intreg6pe9
20.254=20intreg254pe999
14.78=14intreg78pe99
25.66=25intreg66pe99
0,(1)=1/9
5,(23)=5 intregi 23/99 = (5x99+23)/99 = 518/99
12,(6)=12 intregi 6/9 = (12x9+6)/9 = 114/9 = 38/3
20,(254)=20 intregi 254/999 = (20x999+254)/999 = 20234/999
14,(78)=14 intregi 78/99 = (14x99+78)/99 = 1464/99 = 488/33
25,(66)=25 intregi 66/99 = (25x99+66)/99 = 2541/99 = 847/33