Solutions by everydaycalculation.com
1st number: 12/21, 2nd number: 2 14/21
1221 - 5621 is -4421.
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Related: 24/21-56/21 12/42-56/21 12/21-56/42 36/21-56/21 12/63-56/21 12/21-56/63 60/21-56/21 84/21-56/21
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