Solutions by everydaycalculation.com
1st number: 12/21, 2nd number: 3 4/15
1221 - 4915 is -283105.
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Related: 24/21-49/15 12/21-98/15 12/42-49/15 12/21-49/30 36/21-49/15 12/63-49/15 12/21-49/45 60/21-49/15 12/21-49/75 84/21-49/15
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