Solutions by everydaycalculation.com
1st number: 16/18, 2nd number: 1 2/18
1618 - 2018 is -29.
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Related: 32/18-20/18 16/18-40/18 16/36-20/18 16/18-20/36 48/18-20/18 16/18-60/18 16/54-20/18 16/18-20/54 80/18-20/18 16/90-20/18 16/18-20/90
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