Solutions by everydaycalculation.com
1st number: 12/21, 2nd number: 4 4/9
1221 - 409 is -24463.
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Related: 24/21-40/9 12/21-80/9 12/42-40/9 12/21-40/18 36/21-40/9 12/63-40/9 12/21-40/27 60/21-40/9 12/21-40/45 84/21-40/9 12/21-40/63
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