Solutions by everydaycalculation.com
1st number: 1 10/18, 2nd number: 12/18
2818 - 1218 is 89.
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Related: 56/18-12/18 28/18-24/18 28/36-12/18 28/18-12/36 84/18-12/18 28/18-36/18 28/54-12/18 28/18-12/54 28/18-60/18 28/90-12/18 28/18-12/90 28/18-84/18
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