х=1/9+1/6=5/18
х=11/12+5/24=27/24
х=7/9+5/6=29/18
у=1/2+2/5=9/10
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х=1/9+1/6=5/18
х=11/12+5/24=27/24
х=7/9+5/6=29/18
у=1/2+2/5=9/10