Solutions by everydaycalculation.com
1st number: 16/21, 2nd number: 7 3/6
1621 - 456 is -28342.
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Related: 32/21-45/6 16/21-90/6 16/42-45/6 16/21-45/12 48/21-45/6 16/63-45/6 16/21-45/18 80/21-45/6 16/21-45/30 16/21-45/42
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