Solutions by everydaycalculation.com
1st number: 1 3/18, 2nd number: 1 9/18
2118 - 2718 is -13.
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Related: 42/18-27/18 21/18-54/18 21/36-27/18 21/18-27/36 63/18-27/18 21/18-81/18 21/54-27/18 21/18-27/54 21/90-27/18 21/18-27/90
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