Zamień ułamek dziesiętny nieskończony okresowy na ułamek zwykły
1,123(15)
0,(145)
2,(4)
x=1,123151515
1000x=1123,151515
100000x=112315,15
100000x-1000x=112315,15-1123,15
99000x=111192 / : 99000
x=111192/99000
x=0,145145
1000x=145,145145
1000x-x=145,145-0,145
999x=145/ : 999
x=145/999
x=2,44444
10x=24,44444
10x-x=24,4444-2,4444
9x=22/:9
x=22/9
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1,123(15)
x=1,123151515
1000x=1123,151515
100000x=112315,15
100000x-1000x=112315,15-1123,15
99000x=111192 / : 99000
x=111192/99000
x=0,145145
1000x=145,145145
1000x-x=145,145-0,145
999x=145/ : 999
x=145/999
x=2,44444
10x=24,44444
10x-x=24,4444-2,4444
9x=22/:9
x=22/9