Solutions by everydaycalculation.com
1st number: 4 1/12, 2nd number: 7 3/6
4912 - 456 is -4112.
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Related: 98/12-45/6 49/12-90/6 49/24-45/6 49/12-45/12 49/36-45/6 49/12-45/18 49/60-45/6 49/12-45/30 49/84-45/6 49/12-45/42
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