Solutions by everydaycalculation.com
1st number: 1 3/12, 2nd number: 1 5/20
1512 - 2520 is 01.
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Related: 30/12-25/20 15/12-50/20 15/24-25/20 15/12-25/40 45/12-25/20 15/12-75/20 15/36-25/20 15/12-25/60 75/12-25/20 15/60-25/20 15/84-25/20
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