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Transformati in fractia ordinara ireductibila: 2,(5) ; 4,05 ; 6,1(4)

Răspuns :

2,(5)=23/9

4,0(5)=365/90=73/6

6.1(4)=614-61/90=553/90

Explicație pas cu pas:

[tex]2.(5) = 2 \frac{5}{9} = {}^{3)} \frac{24}{9} = \frac{8}{3} [/tex]

[tex]4.05 = {}^{5)} \frac{405}{100} = \frac{81}{20} [/tex]

[tex]6.1(4) = 6 \frac{14 - 1}{90} = 6 \frac{13}{90} = \frac{553}{90} = nu \: se \: mai \: imparte \: exact[/tex]