[tex]z = 2,888...\\10z = 28,888...\\10z - z = 28,888... - 2,888....\\9z = 26\\\\z = \cfrac{26}{9} = \cfrac{x}{y}[/tex]
x = 26y = 9
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[tex]z = 2,888...\\10z = 28,888...\\10z - z = 28,888... - 2,888....\\9z = 26\\\\z = \cfrac{26}{9} = \cfrac{x}{y}[/tex]
x = 26
y = 9