Solutions by everydaycalculation.com
1st number: 15/18, 2nd number: 2 4/18
1518 - 4018 is -2518.
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Related: 30/18-40/18 15/18-80/18 15/36-40/18 15/18-40/36 45/18-40/18 15/54-40/18 15/18-40/54 75/18-40/18 15/90-40/18 15/18-40/90
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