Transforme em fração irredutível: 0,2525...
4,2111...
0,215215...
Soluções para a tarefa
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x = 0,252525...
100x = 25,2525...
100x = 25 + x
100x - x = 25
99x = 25
x = 25/99
x = 4,2111...
10x = 42,111...
10x = 42 + 1/9
10x = 379/9
90x = 379
x = 379/90
x = 0,215215...
1000x = 215,215...
1000x = 215 + x
1000x - x = 215
999x = 215
x = 215/999
100x = 25,2525...
100x = 25 + x
100x - x = 25
99x = 25
x = 25/99
x = 4,2111...
10x = 42,111...
10x = 42 + 1/9
10x = 379/9
90x = 379
x = 379/90
x = 0,215215...
1000x = 215,215...
1000x = 215 + x
1000x - x = 215
999x = 215
x = 215/999
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