Solutions by everydaycalculation.com
1st number: 6/21, 2nd number: 2 11/12
621 - 3512 is -22184.
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Related: 12/21-35/12 6/21-70/12 6/42-35/12 6/21-35/24 18/21-35/12 6/63-35/12 6/21-35/36 30/21-35/12 6/21-35/60 42/21-35/12 6/21-35/84
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