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Transformati uematoarele fracti zecimale in fractii ordinare ireductibile
A )0,5
0,525
0,24
0,2
B) 0,(15 )
0,(6)
0,(36)
0,(195)
C) 3,1(4)
5,2( 52)
3,1 (42)
0.02(06)

Răspuns :

Crisanemanuel
........................................
Vezi imaginea Crisanemanuel
A)
0,5=5/10=1/5
0,525=525/1000=21/40
0,24=24/100=6/25
0,2=2/10=1/5

B)0,(15)=15/99=5/33
0,(6)=6/9=2/3
0,(36)=36/99=12/33=4/11
0,(195)=195/999=65/333

C)3,1(4)=314-31/90=283/90
5,2(52)=5252-52/990=5200/990=520/99
3,1(42)=3142-31/990=3111/990=1037/330
0,02(06)=206-2/9900=204/9900=68/3300=17/825

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