Solutions by everydaycalculation.com
1st number: 1 9/12, 2nd number: 20/21
2112 - 2021 is 6784.
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Related: 42/12-20/21 21/12-40/21 21/24-20/21 21/12-20/42 63/12-20/21 21/12-60/21 21/36-20/21 21/12-20/63 21/60-20/21 21/84-20/21
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