Solutions by everydaycalculation.com
1st number: 15/28, 2nd number: 3 4/12
1528 - 4012 is -23584.
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Related: 30/28-40/12 15/28-80/12 15/56-40/12 15/28-40/24 45/28-40/12 15/84-40/12 15/28-40/36 75/28-40/12 15/28-40/60 15/28-40/84
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