Solutions by everydaycalculation.com
1st number: 1 3/12, 2nd number: 20/21
1512 - 2021 is 2584.
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Related: 30/12-20/21 15/12-40/21 15/24-20/21 15/12-20/42 45/12-20/21 15/12-60/21 15/36-20/21 15/12-20/63 75/12-20/21 15/60-20/21 15/84-20/21
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