Zamień ułamki okresowe na zwykłe.
a) 4,(321)
b)-10,(6)
c)2,3(15)
4,(321)
1000x=4321,(321)
1000000x=4321321,(321)
999000x=4317000
x=4317000/999000=4317/999=4 321/999
-10,(6)
10x=-106,(6)
100x=-1066,(6)
90x=-960
x=-10 60/90=-10 2/3
2,3(15)
10x=23,(15)
1000x=2315,(15)
990x=2292
x=2 312/990=2 52/165
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4,(321)
1000x=4321,(321)
1000000x=4321321,(321)
999000x=4317000
x=4317000/999000=4317/999=4 321/999
-10,(6)
10x=-106,(6)
100x=-1066,(6)
90x=-960
x=-10 60/90=-10 2/3
2,3(15)
10x=23,(15)
1000x=2315,(15)
990x=2292
x=2 312/990=2 52/165