Solutions by everydaycalculation.com
1st number: 2 2/3, 2nd number: 15/21
83 - 1521 is 4121.
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Related: 16/3-15/21 8/3-30/21 8/6-15/21 8/3-15/42 24/3-15/21 8/3-45/21 8/9-15/21 8/3-15/63 40/3-15/21 8/3-75/21 8/15-15/21 56/3-15/21 8/21-15/21
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