Solutions by everydaycalculation.com
1st number: 7/28, 2nd number: 1 26/28
728 - 5428 is -4728.
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Related: 14/28-54/28 7/56-54/28 7/28-54/56 21/28-54/28 7/84-54/28 7/28-54/84 35/28-54/28 49/28-54/28
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