ułamki zwykłe konk: Zapisz w postaci nieskracalnego ułamka zwykłego liczbę: 0,75; 12,5%; 0,34; 45%; 0,22222… 0, 77777…; 0,3232323232…; 0,6565656565…; 0,123123123123…; 0,987987987987… .

Janek191:

	75		3
0,75 =		=
	100		4

	1
12,5 % = 0,125 =
	8

	34		17
0,34 =		=
	100		50

	45		9
45% =		=
	100		20

	2
0,2222.... =
	9

bo x = 0, 222222... 10x = 2,22222... 10x − x = 2,22222.... − 0,22222... = 2 9 x = 2

	2
x =
	9

−−−−−−−−−

	7
0,7777... =
	9

−−−−−−−−−−−−−

	32
0,32323232... =
	99

bo x = 0,32323232... 100 x = 32,323232.... 100 x − x = 32,323232... − 0,323232... = 32 99x = 32

	32
x =
	99

−−−−−−−−−−−

	65
0,65656565... =
	99

−−−−−−−−−−−−−−−−

	123		41
0,123123123... =		=
	999		333

bo x = 0,123123123... 1000 x = 123,123123123... 1000 x − x = 123 999 x = 123

	123		41
x =		=
	999		333

−−−−−−−−−−−−−−−−−−−−−−−

	987		329
0,987987987... =		=
	999		333

−−−−−−−−−−−−−−−−−−−−−−−−−−−

Janek191: Rozwiązanie jest na poziomie gimnazjum.