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2009-10-14T19:39:20+02:00
A) 0,2(6)= 2/10 + 6/99
b) 0,41(6)= 41/100 + 6/999
c) 1,2(13)= 12/10 + 13/999
d) -2,34(5)= - 234/100 - 5/999
2009-10-14T19:52:55+02:00
A)
x=0,2666...
100x=26,666...
10x=2,666
100x-10x=26,666... - 2,666...=24

x=24/90=4/15

b) 375/900
c) 1101/990
d) 2111/900
2009-10-14T20:34:32+02:00
A) 0,2(6)= 2:10 + 6:99
b) 0,41(6)= 41:100 + 6:999
c) 1,2(13)= 12:10 + 13:999
d) -2,34(5)= - 234:100 - 5:999