Solutions by everydaycalculation.com
1st number: 1 9/18, 2nd number: 1 12/18
2718 - 3018 is -16.
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Related: 54/18-30/18 27/18-60/18 27/36-30/18 27/18-30/36 81/18-30/18 27/18-90/18 27/54-30/18 27/18-30/54 27/90-30/18 27/18-30/90
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