Solutions by everydaycalculation.com
1st number: 3 6/12, 2nd number: 4 8/12
4212 - 5612 is -76.
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Related: 84/12-56/12 42/24-56/12 42/12-56/24 42/36-56/12 42/12-56/36 42/60-56/12 42/12-56/60 42/84-56/12 42/12-56/84
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