Solutions by everydaycalculation.com
1st number: 7 3/6, 2nd number: 13 3/6
456 - 816 is -61.
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Related: 90/6-81/6 45/12-81/6 45/6-81/12 45/18-81/6 45/6-81/18 45/30-81/6 45/6-81/30 45/42-81/6 45/6-81/42
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