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Scrie sub forma de fractie numarul zecimal:a)0,(18)b)3,(2)c)6,1(8)d)5,12(18)e)25,1(378) detaliat

Răspuns :

a) 0,(18)=[tex] \frac{18}{99} [/tex]
b)3,(2)=[tex] \frac{32-2}{9} = \frac{30}{9} = \frac{10}{3} [/tex]
c) 6,1(8)=[tex] \frac{618-61}{90} = \frac{557}{90} [/tex]
d) 5,12(18)=[tex] \frac{51218-512}{9900} = \frac{50706}{9900} = \frac{25353}{4950} mai simplifici si tu[/tex]
e) 25,1(378)=[tex] \frac{251378-251}{9990} = \frac{251127}{9990} [/tex] si aici mai simplifici pana ajungi la o fractie ireductibila