Solutions by everydaycalculation.com
1st number: 2/12, 2nd number: 3 9/12
212 - 4512 is -4312.
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Related: 4/12-45/12 2/12-90/12 2/24-45/12 2/12-45/24 6/12-45/12 2/36-45/12 2/12-45/36 10/12-45/12 2/60-45/12 2/12-45/60 14/12-45/12 2/84-45/12 2/12-45/84
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