9 has to be in the middle because,and the last one states...

  1. 6,783 Posts.
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    9 has to be in the middle because,

    https://hotcopper.com.au/data/attachments/4166/4166842-313ea2fd2b9293d0c9a9599e3ce00d9a.jpg

    and the last one states that,

    https://hotcopper.com.au/data/attachments/4166/4166845-800d5615bdbb69df8ca912432486028c.jpg

    so the common denominator for the middle number is 9

    the rest you have to work out ??




 
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