Ответ:
5/9-1/18=10/18-1/18=9/18=1/2
5/6-7/36=30/36-7/36=23/36
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Ответ:
5/9-1/18=10/18-1/18=9/18=1/2
5/6-7/36=30/36-7/36=23/36