Solutions by everydaycalculation.com
1st number: 1 6/12, 2nd number: 5 3/12
1812 - 6312 is -154.
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Related: 36/12-63/12 18/24-63/12 18/12-63/24 54/12-63/12 18/36-63/12 18/12-63/36 90/12-63/12 18/60-63/12 18/12-63/60 18/84-63/12 18/12-63/84
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