Solutions by everydaycalculation.com
1st number: 9/21, 2nd number: 1 19/21
921 + 4021 is 73.
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Related: 18/21+40/21 9/21+80/21 9/42+40/21 9/21+40/42 27/21+40/21 9/63+40/21 9/21+40/63 45/21+40/21 63/21+40/21
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