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HELLPPPP VA ROGGGGG
)Transforma in fractie ordinara ireductibila urmatoarele fractii zecimale.
a)12,5 b) 1,25 c)0,125 d) 22,75 e)0,2
F)1,44 g)16,9 h)7,1 i)62,5 j) 0,0625 k) 0,8

2) Transforma in fractie ordinara ireductibila urmatoarele fractii zecimale.
A)273,6 b)1405,265 c)46,64 d) 103,08 e)79,125 f)13,1 g)0,0064 h)1,9 i)1,99 j)1,999 k)0,99 l)7,05 m) 6,25 n) 0,500


Răspuns :

[tex]1)a)12.5 = \frac{125}{10} = \frac{25}{2} [/tex]

[tex]b)1.25 = \frac{125}{100} = \frac{25}{20} = \frac{5}{4} [/tex]

[tex]c)0.125 = \frac{125}{1000} = \frac{25}{200} = \frac{5}{40} = \frac{1}{8} [/tex]

[tex]d)22.75 = \frac{2275}{100} = \frac{455}{20} = \frac{91}{4} [/tex]

[tex]e)0.2 = \frac{2}{10} = \frac{1}{5} [/tex]

[tex]f)13.1 = \frac{131}{10} [/tex]

[tex]g)16.9 = \frac{169}{10} [/tex]

[tex]h)7.1 = \frac{71}{10} [/tex]

[tex]i)62.5 = \frac{625}{10} = \frac{125}{2} [/tex]

[tex]j)0.0625 = \frac{625}{10000} = \frac{125}{2000} = \frac{25}{400} = \frac{5}{80} = \frac{1}{16} [/tex]

[tex]k)0.8 = \frac{8}{10} = \frac{4}{5} [/tex]

[tex]2)a)273.6 = \frac{2736}{10} = \frac{1368}{5} [/tex]

[tex]b)1405.25 = \frac{140525}{1000} = \frac{28105}{200}=\frac{5621}{40} [/tex]

[tex]c)46.64 = \frac{4664}{100} = \frac{2332}{50} [/tex]

[tex]d)103.08 = \frac{10308}{100} = \frac{5154}{50} = \frac{2577}{25} [/tex]

[tex]e)79.125 = \frac{79125}{1000} = \frac{15825}{200} = \frac{3165}{40} = \frac{633}{8} [/tex]

[tex]f)13.1 = \frac{131}{10} [/tex]

[tex]g)0.0064 = \frac{64}{10000} = \frac{32}{5000} = \frac{16}{2500} = \frac{8}{1250} = \frac{4}{625} [/tex]

[tex]h)1.9 = \frac{19}{10} [/tex]

[tex]i)1.99 = \frac{199}{100} [/tex]

[tex]j)1.999 = \frac{1999}{1000} [/tex]

[tex]k)0.99 = \frac{99}{100} [/tex]

[tex]l)7.05 = \frac{705}{100} = \frac{141}{20} [/tex]

[tex]m)6.25 = \frac{625}{100} = \frac{125}{20} = \frac{25}{4} [/tex]

[tex]n)0.500 = \frac{500}{1000} = \frac{1}{2} [/tex]