zamień ułamek 0.2(34) na zwykły.
0.2(34)=?10x=2.3434...1000x=234.3434...1000x- 10x= 234.3434...-2.3434...990x=232x=232/990x=116/4950.2(34)=116/495
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0.2(34)=?
10x=2.3434...
1000x=234.3434...
1000x-
10x=
234.3434...-2.3434...
990x=232
x=232/990
x=116/495
0.2(34)=116/495